Home / 102,582.60-153,523.80-85,961.40

Finding the Fourth Proportional to 102,582.60, 153,523.80 and 85,961.40

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Solution

The fourth proportional to 102,582.60, 153,523.80 and 85,961.40 is: 128,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,582.60 : 153,523.80 = 85,961.40 : x
  2. Step 2: Convert to fraction form
    102,582.60/153,523.80 = 85,961.40/x
  3. Step 3: Cross multiply
    102,582.60x = 153,523.80 × 85,961.40
  4. Step 4: Simplify right side
    102,582.60x = 13,197,120,781.32
  5. Step 5: Solve for x
    x = 13,197,120,781.32/102,582.60
  6. Step 6: Final answer
    x = 128,648.73

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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.