Home / 88,526.60-133,049.10-77,121.80

Finding the Fourth Proportional to 88,526.60, 133,049.10 and 77,121.80

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Solution

The fourth proportional to 88,526.60, 133,049.10 and 77,121.80 is: 115,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,526.60 : 133,049.10 = 77,121.80 : x
  2. Step 2: Convert to fraction form
    88,526.60/133,049.10 = 77,121.80/x
  3. Step 3: Cross multiply
    88,526.60x = 133,049.10 × 77,121.80
  4. Step 4: Simplify right side
    88,526.60x = 10,260,986,080.38
  5. Step 5: Solve for x
    x = 10,260,986,080.38/88,526.60
  6. Step 6: Final answer
    x = 115,908.51

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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.