Home / 145,260.48-217,892.16-45,425.28

Finding the Fourth Proportional to 145,260.48, 217,892.16 and 45,425.28

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Solution

The fourth proportional to 145,260.48, 217,892.16 and 45,425.28 is: 68,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,260.48 : 217,892.16 = 45,425.28 : x
  2. Step 2: Convert to fraction form
    145,260.48/217,892.16 = 45,425.28/x
  3. Step 3: Cross multiply
    145,260.48x = 217,892.16 × 45,425.28
  4. Step 4: Simplify right side
    145,260.48x = 9,897,812,377.80
  5. Step 5: Solve for x
    x = 9,897,812,377.80/145,260.48
  6. Step 6: Final answer
    x = 68,138.37

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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.