Home / 83,516.55-125,110.80-77,611.65

Finding the Fourth Proportional to 83,516.55, 125,110.80 and 77,611.65

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Solution

The fourth proportional to 83,516.55, 125,110.80 and 77,611.65 is: 116,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.55 : 125,110.80 = 77,611.65 : x
  2. Step 2: Convert to fraction form
    83,516.55/125,110.80 = 77,611.65/x
  3. Step 3: Cross multiply
    83,516.55x = 125,110.80 × 77,611.65
  4. Step 4: Simplify right side
    83,516.55x = 9,710,055,620.82
  5. Step 5: Solve for x
    x = 9,710,055,620.82/83,516.55
  6. Step 6: Final answer
    x = 116,265.05

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1.5x scale

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.