Home / 100,887.55-151,330.92-30,766.66

Finding the Fourth Proportional to 100,887.55, 151,330.92 and 30,766.66

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Solution

The fourth proportional to 100,887.55, 151,330.92 and 30,766.66 is: 46,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,887.55 : 151,330.92 = 30,766.66 : x
  2. Step 2: Convert to fraction form
    100,887.55/151,330.92 = 30,766.66/x
  3. Step 3: Cross multiply
    100,887.55x = 151,330.92 × 30,766.66
  4. Step 4: Simplify right side
    100,887.55x = 4,655,946,963.13
  5. Step 5: Solve for x
    x = 4,655,946,963.13/100,887.55
  6. Step 6: Final answer
    x = 46,149.87

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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.