Home / 124,278.53-171,508.66-70,561.76

Finding the Fourth Proportional to 124,278.53, 171,508.66 and 70,561.76

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Solution

The fourth proportional to 124,278.53, 171,508.66 and 70,561.76 is: 97,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.53 : 171,508.66 = 70,561.76 : x
  2. Step 2: Convert to fraction form
    124,278.53/171,508.66 = 70,561.76/x
  3. Step 3: Cross multiply
    124,278.53x = 171,508.66 × 70,561.76
  4. Step 4: Simplify right side
    124,278.53x = 12,101,951,870.89
  5. Step 5: Solve for x
    x = 12,101,951,870.89/124,278.53
  6. Step 6: Final answer
    x = 97,377.66

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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.