Home / 124,720.96-172,115.08-71,005.97

Finding the Fourth Proportional to 124,720.96, 172,115.08 and 71,005.97

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Solution

The fourth proportional to 124,720.96, 172,115.08 and 71,005.97 is: 97,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720.96 : 172,115.08 = 71,005.97 : x
  2. Step 2: Convert to fraction form
    124,720.96/172,115.08 = 71,005.97/x
  3. Step 3: Cross multiply
    124,720.96x = 172,115.08 × 71,005.97
  4. Step 4: Simplify right side
    124,720.96x = 12,221,198,492.11
  5. Step 5: Solve for x
    x = 12,221,198,492.11/124,720.96
  6. Step 6: Final answer
    x = 97,988.33

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1.5x scale

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.