Home / 150,103.15-207,115.08-85,569.64

Finding the Fourth Proportional to 150,103.15, 207,115.08 and 85,569.64

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Solution

The fourth proportional to 150,103.15, 207,115.08 and 85,569.64 is: 118,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,103.15 : 207,115.08 = 85,569.64 : x
  2. Step 2: Convert to fraction form
    150,103.15/207,115.08 = 85,569.64/x
  3. Step 3: Cross multiply
    150,103.15x = 207,115.08 × 85,569.64
  4. Step 4: Simplify right side
    150,103.15x = 17,722,762,834.17
  5. Step 5: Solve for x
    x = 17,722,762,834.17/150,103.15
  6. Step 6: Final answer
    x = 118,070.56

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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.