Home / 134,566.53-185,700.95-74,135.78

Finding the Fourth Proportional to 134,566.53, 185,700.95 and 74,135.78

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Solution

The fourth proportional to 134,566.53, 185,700.95 and 74,135.78 is: 102,306.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,566.53 : 185,700.95 = 74,135.78 : x
  2. Step 2: Convert to fraction form
    134,566.53/185,700.95 = 74,135.78/x
  3. Step 3: Cross multiply
    134,566.53x = 185,700.95 × 74,135.78
  4. Step 4: Simplify right side
    134,566.53x = 13,767,083,475.81
  5. Step 5: Solve for x
    x = 13,767,083,475.81/134,566.53
  6. Step 6: Final answer
    x = 102,306.89

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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.