Home / 152,837.60-229,429.20-90,543.20

Finding the Fourth Proportional to 152,837.60, 229,429.20 and 90,543.20

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Solution

The fourth proportional to 152,837.60, 229,429.20 and 90,543.20 is: 135,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,837.60 : 229,429.20 = 90,543.20 : x
  2. Step 2: Convert to fraction form
    152,837.60/229,429.20 = 90,543.20/x
  3. Step 3: Cross multiply
    152,837.60x = 229,429.20 × 90,543.20
  4. Step 4: Simplify right side
    152,837.60x = 20,773,253,941.44
  5. Step 5: Solve for x
    x = 20,773,253,941.44/152,837.60
  6. Step 6: Final answer
    x = 135,917.17

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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.