Home / 121,414.72-167,548.02-76,117.12

Finding the Fourth Proportional to 121,414.72, 167,548.02 and 76,117.12

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Solution

The fourth proportional to 121,414.72, 167,548.02 and 76,117.12 is: 105,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,414.72 : 167,548.02 = 76,117.12 : x
  2. Step 2: Convert to fraction form
    121,414.72/167,548.02 = 76,117.12/x
  3. Step 3: Cross multiply
    121,414.72x = 167,548.02 × 76,117.12
  4. Step 4: Simplify right side
    121,414.72x = 12,753,272,744.10
  5. Step 5: Solve for x
    x = 12,753,272,744.10/121,414.72
  6. Step 6: Final answer
    x = 105,038.93

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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.