Home / 126,123.96-173,870.24-99,219.77

Finding the Fourth Proportional to 126,123.96, 173,870.24 and 99,219.77

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Solution

The fourth proportional to 126,123.96, 173,870.24 and 99,219.77 is: 136,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123.96 : 173,870.24 = 99,219.77 : x
  2. Step 2: Convert to fraction form
    126,123.96/173,870.24 = 99,219.77/x
  3. Step 3: Cross multiply
    126,123.96x = 173,870.24 × 99,219.77
  4. Step 4: Simplify right side
    126,123.96x = 17,251,363,857.19
  5. Step 5: Solve for x
    x = 17,251,363,857.19/126,123.96
  6. Step 6: Final answer
    x = 136,781.02

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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.