Home / 101,864.80-140,631.96-67,864.24

Finding the Fourth Proportional to 101,864.80, 140,631.96 and 67,864.24

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Solution

The fourth proportional to 101,864.80, 140,631.96 and 67,864.24 is: 93,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,864.80 : 140,631.96 = 67,864.24 : x
  2. Step 2: Convert to fraction form
    101,864.80/140,631.96 = 67,864.24/x
  3. Step 3: Cross multiply
    101,864.80x = 140,631.96 × 67,864.24
  4. Step 4: Simplify right side
    101,864.80x = 9,543,881,085.11
  5. Step 5: Solve for x
    x = 9,543,881,085.11/101,864.80
  6. Step 6: Final answer
    x = 93,691.65

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1.5x scale

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.