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Finding the Fourth Proportional to 83,833.63, 125,750.75 and 79,629.12

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Solution

The fourth proportional to 83,833.63, 125,750.75 and 79,629.12 is: 119,443.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,833.63 : 125,750.75 = 79,629.12 : x
  2. Step 2: Convert to fraction form
    83,833.63/125,750.75 = 79,629.12/x
  3. Step 3: Cross multiply
    83,833.63x = 125,750.75 × 79,629.12
  4. Step 4: Simplify right side
    83,833.63x = 10,013,421,561.84
  5. Step 5: Solve for x
    x = 10,013,421,561.84/83,833.63
  6. Step 6: Final answer
    x = 119,443.97

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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.