Home / 90,658.02-136,008.54-89,151.96

Finding the Fourth Proportional to 90,658.02, 136,008.54 and 89,151.96

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Solution

The fourth proportional to 90,658.02, 136,008.54 and 89,151.96 is: 133,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.02 : 136,008.54 = 89,151.96 : x
  2. Step 2: Convert to fraction form
    90,658.02/136,008.54 = 89,151.96/x
  3. Step 3: Cross multiply
    90,658.02x = 136,008.54 × 89,151.96
  4. Step 4: Simplify right side
    90,658.02x = 12,125,427,917.74
  5. Step 5: Solve for x
    x = 12,125,427,917.74/90,658.02
  6. Step 6: Final answer
    x = 133,749.09

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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.