Home / 121,562.10-167,642.46-80,654.13

Finding the Fourth Proportional to 121,562.10, 167,642.46 and 80,654.13

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Solution

The fourth proportional to 121,562.10, 167,642.46 and 80,654.13 is: 111,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,562.10 : 167,642.46 = 80,654.13 : x
  2. Step 2: Convert to fraction form
    121,562.10/167,642.46 = 80,654.13/x
  3. Step 3: Cross multiply
    121,562.10x = 167,642.46 × 80,654.13
  4. Step 4: Simplify right side
    121,562.10x = 13,521,056,762.36
  5. Step 5: Solve for x
    x = 13,521,056,762.36/121,562.10
  6. Step 6: Final answer
    x = 111,227.57

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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.