Home / 112,334,540.80-168,501,811.20-105,616,076.80

Finding the Fourth Proportional to 112,334,540.80, 168,501,811.20 and 105,616,076.80

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Solution

The fourth proportional to 112,334,540.80, 168,501,811.20 and 105,616,076.80 is: 158,424,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,334,540.80 : 168,501,811.20 = 105,616,076.80 : x
  2. Step 2: Convert to fraction form
    112,334,540.80/168,501,811.20 = 105,616,076.80/x
  3. Step 3: Cross multiply
    112,334,540.80x = 168,501,811.20 × 105,616,076.80
  4. Step 4: Simplify right side
    112,334,540.80x = 17,796,500,232,638,298
  5. Step 5: Solve for x
    x = 17,796,500,232,638,298/112,334,540.80
  6. Step 6: Final answer
    x = 158,424,115.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.