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Finding the Fourth Proportional to 88,823.80, 133,041.30 and 77,159.80

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Solution

The fourth proportional to 88,823.80, 133,041.30 and 77,159.80 is: 115,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,823.80 : 133,041.30 = 77,159.80 : x
  2. Step 2: Convert to fraction form
    88,823.80/133,041.30 = 77,159.80/x
  3. Step 3: Cross multiply
    88,823.80x = 133,041.30 × 77,159.80
  4. Step 4: Simplify right side
    88,823.80x = 10,265,440,099.74
  5. Step 5: Solve for x
    x = 10,265,440,099.74/88,823.80
  6. Step 6: Final answer
    x = 115,570.83

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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.