Home / 124,820.25-172,328.22-81,254.13

Finding the Fourth Proportional to 124,820.25, 172,328.22 and 81,254.13

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Solution

The fourth proportional to 124,820.25, 172,328.22 and 81,254.13 is: 112,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,820.25 : 172,328.22 = 81,254.13 : x
  2. Step 2: Convert to fraction form
    124,820.25/172,328.22 = 81,254.13/x
  3. Step 3: Cross multiply
    124,820.25x = 172,328.22 × 81,254.13
  4. Step 4: Simplify right side
    124,820.25x = 14,002,379,590.55
  5. Step 5: Solve for x
    x = 14,002,379,590.55/124,820.25
  6. Step 6: Final answer
    x = 112,180.35

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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.