Home / 140,748.66-194,237.76-77,089.92

Finding the Fourth Proportional to 140,748.66, 194,237.76 and 77,089.92

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Solution

The fourth proportional to 140,748.66, 194,237.76 and 77,089.92 is: 106,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,748.66 : 194,237.76 = 77,089.92 : x
  2. Step 2: Convert to fraction form
    140,748.66/194,237.76 = 77,089.92/x
  3. Step 3: Cross multiply
    140,748.66x = 194,237.76 × 77,089.92
  4. Step 4: Simplify right side
    140,748.66x = 14,973,773,379.38
  5. Step 5: Solve for x
    x = 14,973,773,379.38/140,748.66
  6. Step 6: Final answer
    x = 106,386.61

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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.