Home / 125,111.22-172,656.37-71,401.24

Finding the Fourth Proportional to 125,111.22, 172,656.37 and 71,401.24

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Solution

The fourth proportional to 125,111.22, 172,656.37 and 71,401.24 is: 98,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.22 : 172,656.37 = 71,401.24 : x
  2. Step 2: Convert to fraction form
    125,111.22/172,656.37 = 71,401.24/x
  3. Step 3: Cross multiply
    125,111.22x = 172,656.37 × 71,401.24
  4. Step 4: Simplify right side
    125,111.22x = 12,327,878,911.90
  5. Step 5: Solve for x
    x = 12,327,878,911.90/125,111.22
  6. Step 6: Final answer
    x = 98,535.36

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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.