Home / 91,808,657.70-137,712,986.55-71,002,742.55

Finding the Fourth Proportional to 91,808,657.70, 137,712,986.55 and 71,002,742.55

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Solution

The fourth proportional to 91,808,657.70, 137,712,986.55 and 71,002,742.55 is: 106,504,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808,657.70 : 137,712,986.55 = 71,002,742.55 : x
  2. Step 2: Convert to fraction form
    91,808,657.70/137,712,986.55 = 71,002,742.55/x
  3. Step 3: Cross multiply
    91,808,657.70x = 137,712,986.55 × 71,002,742.55
  4. Step 4: Simplify right side
    91,808,657.70x = 9,777,999,729,801,264
  5. Step 5: Solve for x
    x = 9,777,999,729,801,264/91,808,657.70
  6. Step 6: Final answer
    x = 106,504,113.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.