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Finding the Fourth Proportional to 145,017.62, 217,526.43 and 39,837.14

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Solution

The fourth proportional to 145,017.62, 217,526.43 and 39,837.14 is: 59,755.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,017.62 : 217,526.43 = 39,837.14 : x
  2. Step 2: Convert to fraction form
    145,017.62/217,526.43 = 39,837.14/x
  3. Step 3: Cross multiply
    145,017.62x = 217,526.43 × 39,837.14
  4. Step 4: Simplify right side
    145,017.62x = 8,665,630,845.61
  5. Step 5: Solve for x
    x = 8,665,630,845.61/145,017.62
  6. Step 6: Final answer
    x = 59,755.71

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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.