Home / 124,815.18-172,246.10-71,099.40

Finding the Fourth Proportional to 124,815.18, 172,246.10 and 71,099.40

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Solution

The fourth proportional to 124,815.18, 172,246.10 and 71,099.40 is: 98,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,815.18 : 172,246.10 = 71,099.40 : x
  2. Step 2: Convert to fraction form
    124,815.18/172,246.10 = 71,099.40/x
  3. Step 3: Cross multiply
    124,815.18x = 172,246.10 × 71,099.40
  4. Step 4: Simplify right side
    124,815.18x = 12,246,594,006.84
  5. Step 5: Solve for x
    x = 12,246,594,006.84/124,815.18
  6. Step 6: Final answer
    x = 98,117.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.