Home / 136,390.40-204,585.60-42,924.80

Finding the Fourth Proportional to 136,390.40, 204,585.60 and 42,924.80

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Solution

The fourth proportional to 136,390.40, 204,585.60 and 42,924.80 is: 64,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,390.40 : 204,585.60 = 42,924.80 : x
  2. Step 2: Convert to fraction form
    136,390.40/204,585.60 = 42,924.80/x
  3. Step 3: Cross multiply
    136,390.40x = 204,585.60 × 42,924.80
  4. Step 4: Simplify right side
    136,390.40x = 8,781,795,962.88
  5. Step 5: Solve for x
    x = 8,781,795,962.88/136,390.40
  6. Step 6: Final answer
    x = 64,387.20

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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.