Home / 82,875.20-124,168.80-74,753.60

Finding the Fourth Proportional to 82,875.20, 124,168.80 and 74,753.60

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Solution

The fourth proportional to 82,875.20, 124,168.80 and 74,753.60 is: 112,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,875.20 : 124,168.80 = 74,753.60 : x
  2. Step 2: Convert to fraction form
    82,875.20/124,168.80 = 74,753.60/x
  3. Step 3: Cross multiply
    82,875.20x = 124,168.80 × 74,753.60
  4. Step 4: Simplify right side
    82,875.20x = 9,282,064,807.68
  5. Step 5: Solve for x
    x = 9,282,064,807.68/82,875.20
  6. Step 6: Final answer
    x = 112,000.51

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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.