Home / 128,220.60-192,330.90-34,726.35

Finding the Fourth Proportional to 128,220.60, 192,330.90 and 34,726.35

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Solution

The fourth proportional to 128,220.60, 192,330.90 and 34,726.35 is: 52,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,220.60 : 192,330.90 = 34,726.35 : x
  2. Step 2: Convert to fraction form
    128,220.60/192,330.90 = 34,726.35/x
  3. Step 3: Cross multiply
    128,220.60x = 192,330.90 × 34,726.35
  4. Step 4: Simplify right side
    128,220.60x = 6,678,950,149.22
  5. Step 5: Solve for x
    x = 6,678,950,149.22/128,220.60
  6. Step 6: Final answer
    x = 52,089.53

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Similar ratio
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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.