Home / 121,146.02-167,187-67,434.46

Finding the Fourth Proportional to 121,146.02, 167,187 and 67,434.46

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Solution

The fourth proportional to 121,146.02, 167,187 and 67,434.46 is: 93,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146.02 : 167,187 = 67,434.46 : x
  2. Step 2: Convert to fraction form
    121,146.02/167,187 = 67,434.46/x
  3. Step 3: Cross multiply
    121,146.02x = 167,187 × 67,434.46
  4. Step 4: Simplify right side
    121,146.02x = 11,274,165,064.02
  5. Step 5: Solve for x
    x = 11,274,165,064.02/121,146.02
  6. Step 6: Final answer
    x = 93,062.61

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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.