Home / 140,795.74-194,298.18-77,133.76

Finding the Fourth Proportional to 140,795.74, 194,298.18 and 77,133.76

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Solution

The fourth proportional to 140,795.74, 194,298.18 and 77,133.76 is: 106,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,795.74 : 194,298.18 = 77,133.76 : x
  2. Step 2: Convert to fraction form
    140,795.74/194,298.18 = 77,133.76/x
  3. Step 3: Cross multiply
    140,795.74x = 194,298.18 × 77,133.76
  4. Step 4: Simplify right side
    140,795.74x = 14,986,949,184.56
  5. Step 5: Solve for x
    x = 14,986,949,184.56/140,795.74
  6. Step 6: Final answer
    x = 106,444.62

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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.