Home / 122,904.12-169,659.96-82,641.18

Finding the Fourth Proportional to 122,904.12, 169,659.96 and 82,641.18

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Solution

The fourth proportional to 122,904.12, 169,659.96 and 82,641.18 is: 114,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,904.12 : 169,659.96 = 82,641.18 : x
  2. Step 2: Convert to fraction form
    122,904.12/169,659.96 = 82,641.18/x
  3. Step 3: Cross multiply
    122,904.12x = 169,659.96 × 82,641.18
  4. Step 4: Simplify right side
    122,904.12x = 14,020,899,293.15
  5. Step 5: Solve for x
    x = 14,020,899,293.15/122,904.12
  6. Step 6: Final answer
    x = 114,079.98

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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.