Home / 124,720.26-172,107.48-71,005.12

Finding the Fourth Proportional to 124,720.26, 172,107.48 and 71,005.12

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Solution

The fourth proportional to 124,720.26, 172,107.48 and 71,005.12 is: 97,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720.26 : 172,107.48 = 71,005.12 : x
  2. Step 2: Convert to fraction form
    124,720.26/172,107.48 = 71,005.12/x
  3. Step 3: Cross multiply
    124,720.26x = 172,107.48 × 71,005.12
  4. Step 4: Simplify right side
    124,720.26x = 12,220,512,270.30
  5. Step 5: Solve for x
    x = 12,220,512,270.30/124,720.26
  6. Step 6: Final answer
    x = 97,983.38

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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.