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Finding the Fourth Proportional to 157,950.81, 217,972.06 and 89,974.08

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Solution

The fourth proportional to 157,950.81, 217,972.06 and 89,974.08 is: 124,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,950.81 : 217,972.06 = 89,974.08 : x
  2. Step 2: Convert to fraction form
    157,950.81/217,972.06 = 89,974.08/x
  3. Step 3: Cross multiply
    157,950.81x = 217,972.06 × 89,974.08
  4. Step 4: Simplify right side
    157,950.81x = 19,611,835,564.20
  5. Step 5: Solve for x
    x = 19,611,835,564.20/157,950.81
  6. Step 6: Final answer
    x = 124,164.20

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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.