Home / 121,463.66-167,586.20-78,444.96

Finding the Fourth Proportional to 121,463.66, 167,586.20 and 78,444.96

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Solution

The fourth proportional to 121,463.66, 167,586.20 and 78,444.96 is: 108,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,463.66 : 167,586.20 = 78,444.96 : x
  2. Step 2: Convert to fraction form
    121,463.66/167,586.20 = 78,444.96/x
  3. Step 3: Cross multiply
    121,463.66x = 167,586.20 × 78,444.96
  4. Step 4: Simplify right side
    121,463.66x = 13,146,292,755.55
  5. Step 5: Solve for x
    x = 13,146,292,755.55/121,463.66
  6. Step 6: Final answer
    x = 108,232.31

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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.