Home / 82,848.12-124,282.68-81,565.80

Finding the Fourth Proportional to 82,848.12, 124,282.68 and 81,565.80

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Solution

The fourth proportional to 82,848.12, 124,282.68 and 81,565.80 is: 122,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,848.12 : 124,282.68 = 81,565.80 : x
  2. Step 2: Convert to fraction form
    82,848.12/124,282.68 = 81,565.80/x
  3. Step 3: Cross multiply
    82,848.12x = 124,282.68 × 81,565.80
  4. Step 4: Simplify right side
    82,848.12x = 10,137,216,220.34
  5. Step 5: Solve for x
    x = 10,137,216,220.34/82,848.12
  6. Step 6: Final answer
    x = 122,359.04

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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.