Home / 122,872.88-169,502.40-71,852.24

Finding the Fourth Proportional to 122,872.88, 169,502.40 and 71,852.24

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Solution

The fourth proportional to 122,872.88, 169,502.40 and 71,852.24 is: 99,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,872.88 : 169,502.40 = 71,852.24 : x
  2. Step 2: Convert to fraction form
    122,872.88/169,502.40 = 71,852.24/x
  3. Step 3: Cross multiply
    122,872.88x = 169,502.40 × 71,852.24
  4. Step 4: Simplify right side
    122,872.88x = 12,179,127,125.38
  5. Step 5: Solve for x
    x = 12,179,127,125.38/122,872.88
  6. Step 6: Final answer
    x = 99,119.73

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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.