Home / 83,947.78-125,307.48-73,983.57

Finding the Fourth Proportional to 83,947.78, 125,307.48 and 73,983.57

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Solution

The fourth proportional to 83,947.78, 125,307.48 and 73,983.57 is: 110,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,947.78 : 125,307.48 = 73,983.57 : x
  2. Step 2: Convert to fraction form
    83,947.78/125,307.48 = 73,983.57/x
  3. Step 3: Cross multiply
    83,947.78x = 125,307.48 × 73,983.57
  4. Step 4: Simplify right side
    83,947.78x = 9,270,694,718.10
  5. Step 5: Solve for x
    x = 9,270,694,718.10/83,947.78
  6. Step 6: Final answer
    x = 110,434.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.