Home / 154,663.40-231,995.10-137,037.80

Finding the Fourth Proportional to 154,663.40, 231,995.10 and 137,037.80

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Solution

The fourth proportional to 154,663.40, 231,995.10 and 137,037.80 is: 205,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,663.40 : 231,995.10 = 137,037.80 : x
  2. Step 2: Convert to fraction form
    154,663.40/231,995.10 = 137,037.80/x
  3. Step 3: Cross multiply
    154,663.40x = 231,995.10 × 137,037.80
  4. Step 4: Simplify right side
    154,663.40x = 31,792,098,114.78
  5. Step 5: Solve for x
    x = 31,792,098,114.78/154,663.40
  6. Step 6: Final answer
    x = 205,556.70

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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.