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Finding the Fourth Proportional to 150,520.86, 207,725.16 and 86,000.72

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Solution

The fourth proportional to 150,520.86, 207,725.16 and 86,000.72 is: 118,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,520.86 : 207,725.16 = 86,000.72 : x
  2. Step 2: Convert to fraction form
    150,520.86/207,725.16 = 86,000.72/x
  3. Step 3: Cross multiply
    150,520.86x = 207,725.16 × 86,000.72
  4. Step 4: Simplify right side
    150,520.86x = 17,864,512,283.49
  5. Step 5: Solve for x
    x = 17,864,512,283.49/150,520.86
  6. Step 6: Final answer
    x = 118,684.63

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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.