Home / 152,138.31-209,944.71-83,226.66

Finding the Fourth Proportional to 152,138.31, 209,944.71 and 83,226.66

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Solution

The fourth proportional to 152,138.31, 209,944.71 and 83,226.66 is: 114,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,138.31 : 209,944.71 = 83,226.66 : x
  2. Step 2: Convert to fraction form
    152,138.31/209,944.71 = 83,226.66/x
  3. Step 3: Cross multiply
    152,138.31x = 209,944.71 × 83,226.66
  4. Step 4: Simplify right side
    152,138.31x = 17,472,996,997.97
  5. Step 5: Solve for x
    x = 17,472,996,997.97/152,138.31
  6. Step 6: Final answer
    x = 114,849.42

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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.