Home / 101,631.16-152,422.23-42,434.74

Finding the Fourth Proportional to 101,631.16, 152,422.23 and 42,434.74

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Solution

The fourth proportional to 101,631.16, 152,422.23 and 42,434.74 is: 63,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,631.16 : 152,422.23 = 42,434.74 : x
  2. Step 2: Convert to fraction form
    101,631.16/152,422.23 = 42,434.74/x
  3. Step 3: Cross multiply
    101,631.16x = 152,422.23 × 42,434.74
  4. Step 4: Simplify right side
    101,631.16x = 6,467,997,700.27
  5. Step 5: Solve for x
    x = 6,467,997,700.27/101,631.16
  6. Step 6: Final answer
    x = 63,641.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.