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Finding the Fourth Proportional to 157,952.81, 217,974.83 and 89,976.08

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Solution

The fourth proportional to 157,952.81, 217,974.83 and 89,976.08 is: 124,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,952.81 : 217,974.83 = 89,976.08 : x
  2. Step 2: Convert to fraction form
    157,952.81/217,974.83 = 89,976.08/x
  3. Step 3: Cross multiply
    157,952.81x = 217,974.83 × 89,976.08
  4. Step 4: Simplify right side
    157,952.81x = 19,612,519,202.31
  5. Step 5: Solve for x
    x = 19,612,519,202.31/157,952.81
  6. Step 6: Final answer
    x = 124,166.96

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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.