Home / 140,916.12-194,462.01-77,254.35

Finding the Fourth Proportional to 140,916.12, 194,462.01 and 77,254.35

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Solution

The fourth proportional to 140,916.12, 194,462.01 and 77,254.35 is: 106,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,916.12 : 194,462.01 = 77,254.35 : x
  2. Step 2: Convert to fraction form
    140,916.12/194,462.01 = 77,254.35/x
  3. Step 3: Cross multiply
    140,916.12x = 194,462.01 × 77,254.35
  4. Step 4: Simplify right side
    140,916.12x = 15,023,036,182.24
  5. Step 5: Solve for x
    x = 15,023,036,182.24/140,916.12
  6. Step 6: Final answer
    x = 106,609.78

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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.