Home / 82,868.10-124,302.15-69,908.10

Finding the Fourth Proportional to 82,868.10, 124,302.15 and 69,908.10

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Solution

The fourth proportional to 82,868.10, 124,302.15 and 69,908.10 is: 104,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,868.10 : 124,302.15 = 69,908.10 : x
  2. Step 2: Convert to fraction form
    82,868.10/124,302.15 = 69,908.10/x
  3. Step 3: Cross multiply
    82,868.10x = 124,302.15 × 69,908.10
  4. Step 4: Simplify right side
    82,868.10x = 8,689,727,132.42
  5. Step 5: Solve for x
    x = 8,689,727,132.42/82,868.10
  6. Step 6: Final answer
    x = 104,862.15

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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.