Home / 122,114.13-168,575.22-81,854.19

Finding the Fourth Proportional to 122,114.13, 168,575.22 and 81,854.19

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Solution

The fourth proportional to 122,114.13, 168,575.22 and 81,854.19 is: 112,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,114.13 : 168,575.22 = 81,854.19 : x
  2. Step 2: Convert to fraction form
    122,114.13/168,575.22 = 81,854.19/x
  3. Step 3: Cross multiply
    122,114.13x = 168,575.22 × 81,854.19
  4. Step 4: Simplify right side
    122,114.13x = 13,798,588,303.97
  5. Step 5: Solve for x
    x = 13,798,588,303.97/122,114.13
  6. Step 6: Final answer
    x = 112,997.47

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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.