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Finding the Fourth Proportional to 144,951.30, 217,098.90 and 91,807.20

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Solution

The fourth proportional to 144,951.30, 217,098.90 and 91,807.20 is: 137,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,951.30 : 217,098.90 = 91,807.20 : x
  2. Step 2: Convert to fraction form
    144,951.30/217,098.90 = 91,807.20/x
  3. Step 3: Cross multiply
    144,951.30x = 217,098.90 × 91,807.20
  4. Step 4: Simplify right side
    144,951.30x = 19,931,242,132.08
  5. Step 5: Solve for x
    x = 19,931,242,132.08/144,951.30
  6. Step 6: Final answer
    x = 137,503.02

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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.