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Finding the Fourth Proportional to 154,708.20, 232,299.90 and 84,724.20

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Solution

The fourth proportional to 154,708.20, 232,299.90 and 84,724.20 is: 127,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,708.20 : 232,299.90 = 84,724.20 : x
  2. Step 2: Convert to fraction form
    154,708.20/232,299.90 = 84,724.20/x
  3. Step 3: Cross multiply
    154,708.20x = 232,299.90 × 84,724.20
  4. Step 4: Simplify right side
    154,708.20x = 19,681,423,187.58
  5. Step 5: Solve for x
    x = 19,681,423,187.58/154,708.20
  6. Step 6: Final answer
    x = 127,216.42

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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.