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Finding the Fourth Proportional to 149,892.60, 224,802.90 and 86,575.80

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Solution

The fourth proportional to 149,892.60, 224,802.90 and 86,575.80 is: 129,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,892.60 : 224,802.90 = 86,575.80 : x
  2. Step 2: Convert to fraction form
    149,892.60/224,802.90 = 86,575.80/x
  3. Step 3: Cross multiply
    149,892.60x = 224,802.90 × 86,575.80
  4. Step 4: Simplify right side
    149,892.60x = 19,462,490,909.82
  5. Step 5: Solve for x
    x = 19,462,490,909.82/149,892.60
  6. Step 6: Final answer
    x = 129,842.91

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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.