Home / 154,139.50-231,209.25-43,331.50

Finding the Fourth Proportional to 154,139.50, 231,209.25 and 43,331.50

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Solution

The fourth proportional to 154,139.50, 231,209.25 and 43,331.50 is: 64,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,139.50 : 231,209.25 = 43,331.50 : x
  2. Step 2: Convert to fraction form
    154,139.50/231,209.25 = 43,331.50/x
  3. Step 3: Cross multiply
    154,139.50x = 231,209.25 × 43,331.50
  4. Step 4: Simplify right side
    154,139.50x = 10,018,643,616.38
  5. Step 5: Solve for x
    x = 10,018,643,616.38/154,139.50
  6. Step 6: Final answer
    x = 64,997.25

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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.