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Finding the Fourth Proportional to 137,614.40, 206,421.60 and 137,614.40

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Solution

The fourth proportional to 137,614.40, 206,421.60 and 137,614.40 is: 206,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,614.40 : 206,421.60 = 137,614.40 : x
  2. Step 2: Convert to fraction form
    137,614.40/206,421.60 = 137,614.40/x
  3. Step 3: Cross multiply
    137,614.40x = 206,421.60 × 137,614.40
  4. Step 4: Simplify right side
    137,614.40x = 28,406,584,631.04
  5. Step 5: Solve for x
    x = 28,406,584,631.04/137,614.40
  6. Step 6: Final answer
    x = 206,421.60

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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.