Home / 134,688.27-185,878.14-74,258.78

Finding the Fourth Proportional to 134,688.27, 185,878.14 and 74,258.78

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Solution

The fourth proportional to 134,688.27, 185,878.14 and 74,258.78 is: 102,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,688.27 : 185,878.14 = 74,258.78 : x
  2. Step 2: Convert to fraction form
    134,688.27/185,878.14 = 74,258.78/x
  3. Step 3: Cross multiply
    134,688.27x = 185,878.14 × 74,258.78
  4. Step 4: Simplify right side
    134,688.27x = 13,803,083,114.91
  5. Step 5: Solve for x
    x = 13,803,083,114.91/134,688.27
  6. Step 6: Final answer
    x = 102,481.70

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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.