Home / 134,902.78-186,166.54-74,472.32

Finding the Fourth Proportional to 134,902.78, 186,166.54 and 74,472.32

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Solution

The fourth proportional to 134,902.78, 186,166.54 and 74,472.32 is: 102,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,902.78 : 186,166.54 = 74,472.32 : x
  2. Step 2: Convert to fraction form
    134,902.78/186,166.54 = 74,472.32/x
  3. Step 3: Cross multiply
    134,902.78x = 186,166.54 × 74,472.32
  4. Step 4: Simplify right side
    134,902.78x = 13,864,254,140.17
  5. Step 5: Solve for x
    x = 13,864,254,140.17/134,902.78
  6. Step 6: Final answer
    x = 102,772.19

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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.