Home / 83,154.24-114,519.60-77,817.96

Finding the Fourth Proportional to 83,154.24, 114,519.60 and 77,817.96

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Solution

The fourth proportional to 83,154.24, 114,519.60 and 77,817.96 is: 107,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,154.24 : 114,519.60 = 77,817.96 : x
  2. Step 2: Convert to fraction form
    83,154.24/114,519.60 = 77,817.96/x
  3. Step 3: Cross multiply
    83,154.24x = 114,519.60 × 77,817.96
  4. Step 4: Simplify right side
    83,154.24x = 8,911,681,652.02
  5. Step 5: Solve for x
    x = 8,911,681,652.02/83,154.24
  6. Step 6: Final answer
    x = 107,170.50

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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.