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Finding the Fourth Proportional to 101,603.47, 152,405.20 and 42,397.62

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Solution

The fourth proportional to 101,603.47, 152,405.20 and 42,397.62 is: 63,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,603.47 : 152,405.20 = 42,397.62 : x
  2. Step 2: Convert to fraction form
    101,603.47/152,405.20 = 42,397.62/x
  3. Step 3: Cross multiply
    101,603.47x = 152,405.20 × 42,397.62
  4. Step 4: Simplify right side
    101,603.47x = 6,461,617,755.62
  5. Step 5: Solve for x
    x = 6,461,617,755.62/101,603.47
  6. Step 6: Final answer
    x = 63,596.43

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1.5x scale

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.