Home / 112,076.40-154,663.32-61,089.60

Finding the Fourth Proportional to 112,076.40, 154,663.32 and 61,089.60

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Solution

The fourth proportional to 112,076.40, 154,663.32 and 61,089.60 is: 84,302.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,076.40 : 154,663.32 = 61,089.60 : x
  2. Step 2: Convert to fraction form
    112,076.40/154,663.32 = 61,089.60/x
  3. Step 3: Cross multiply
    112,076.40x = 154,663.32 × 61,089.60
  4. Step 4: Simplify right side
    112,076.40x = 9,448,320,353.47
  5. Step 5: Solve for x
    x = 9,448,320,353.47/112,076.40
  6. Step 6: Final answer
    x = 84,302.50

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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.