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Finding the Fourth Proportional to 158,972.59, 219,381.51 and 87,352.39

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Solution

The fourth proportional to 158,972.59, 219,381.51 and 87,352.39 is: 120,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,972.59 : 219,381.51 = 87,352.39 : x
  2. Step 2: Convert to fraction form
    158,972.59/219,381.51 = 87,352.39/x
  3. Step 3: Cross multiply
    158,972.59x = 219,381.51 × 87,352.39
  4. Step 4: Simplify right side
    158,972.59x = 19,163,499,220.31
  5. Step 5: Solve for x
    x = 19,163,499,220.31/158,972.59
  6. Step 6: Final answer
    x = 120,545.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.