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Finding the Fourth Proportional to 88,866.90, 133,041.15 and 79,535.70

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Solution

The fourth proportional to 88,866.90, 133,041.15 and 79,535.70 is: 119,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,866.90 : 133,041.15 = 79,535.70 : x
  2. Step 2: Convert to fraction form
    88,866.90/133,041.15 = 79,535.70/x
  3. Step 3: Cross multiply
    88,866.90x = 133,041.15 × 79,535.70
  4. Step 4: Simplify right side
    88,866.90x = 10,581,520,994.06
  5. Step 5: Solve for x
    x = 10,581,520,994.06/88,866.90
  6. Step 6: Final answer
    x = 119,071.57

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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.