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Finding the Fourth Proportional to 150,060, 207,086.64 and 90,447.84

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Solution

The fourth proportional to 150,060, 207,086.64 and 90,447.84 is: 124,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,060 : 207,086.64 = 90,447.84 : x
  2. Step 2: Convert to fraction form
    150,060/207,086.64 = 90,447.84/x
  3. Step 3: Cross multiply
    150,060x = 207,086.64 × 90,447.84
  4. Step 4: Simplify right side
    150,060x = 18,730,539,280.86
  5. Step 5: Solve for x
    x = 18,730,539,280.86/150,060
  6. Step 6: Final answer
    x = 124,820.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.