Home / 136,474.16-188,334.72-79,124.60

Finding the Fourth Proportional to 136,474.16, 188,334.72 and 79,124.60

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Solution

The fourth proportional to 136,474.16, 188,334.72 and 79,124.60 is: 109,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,474.16 : 188,334.72 = 79,124.60 : x
  2. Step 2: Convert to fraction form
    136,474.16/188,334.72 = 79,124.60/x
  3. Step 3: Cross multiply
    136,474.16x = 188,334.72 × 79,124.60
  4. Step 4: Simplify right side
    136,474.16x = 14,901,909,386.11
  5. Step 5: Solve for x
    x = 14,901,909,386.11/136,474.16
  6. Step 6: Final answer
    x = 109,192.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.