Home / 154,480.07-231,807.68-83,401.76

Finding the Fourth Proportional to 154,480.07, 231,807.68 and 83,401.76

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Solution

The fourth proportional to 154,480.07, 231,807.68 and 83,401.76 is: 125,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,480.07 : 231,807.68 = 83,401.76 : x
  2. Step 2: Convert to fraction form
    154,480.07/231,807.68 = 83,401.76/x
  3. Step 3: Cross multiply
    154,480.07x = 231,807.68 × 83,401.76
  4. Step 4: Simplify right side
    154,480.07x = 19,333,168,493.52
  5. Step 5: Solve for x
    x = 19,333,168,493.52/154,480.07
  6. Step 6: Final answer
    x = 125,149.92

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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.