Home / 124,899.40-172,341.84-71,186.68

Finding the Fourth Proportional to 124,899.40, 172,341.84 and 71,186.68

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Solution

The fourth proportional to 124,899.40, 172,341.84 and 71,186.68 is: 98,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,899.40 : 172,341.84 = 71,186.68 : x
  2. Step 2: Convert to fraction form
    124,899.40/172,341.84 = 71,186.68/x
  3. Step 3: Cross multiply
    124,899.40x = 172,341.84 × 71,186.68
  4. Step 4: Simplify right side
    124,899.40x = 12,268,443,414.69
  5. Step 5: Solve for x
    x = 12,268,443,414.69/124,899.40
  6. Step 6: Final answer
    x = 98,226.60

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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.