Home / 150,108.68-207,175.38-86,434.76

Finding the Fourth Proportional to 150,108.68, 207,175.38 and 86,434.76

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Solution

The fourth proportional to 150,108.68, 207,175.38 and 86,434.76 is: 119,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,108.68 : 207,175.38 = 86,434.76 : x
  2. Step 2: Convert to fraction form
    150,108.68/207,175.38 = 86,434.76/x
  3. Step 3: Cross multiply
    150,108.68x = 207,175.38 × 86,434.76
  4. Step 4: Simplify right side
    150,108.68x = 17,907,154,248.21
  5. Step 5: Solve for x
    x = 17,907,154,248.21/150,108.68
  6. Step 6: Final answer
    x = 119,294.60

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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.