Home / 83,743.80-125,907.30-70,913.40

Finding the Fourth Proportional to 83,743.80, 125,907.30 and 70,913.40

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Solution

The fourth proportional to 83,743.80, 125,907.30 and 70,913.40 is: 106,617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,743.80 : 125,907.30 = 70,913.40 : x
  2. Step 2: Convert to fraction form
    83,743.80/125,907.30 = 70,913.40/x
  3. Step 3: Cross multiply
    83,743.80x = 125,907.30 × 70,913.40
  4. Step 4: Simplify right side
    83,743.80x = 8,928,514,727.82
  5. Step 5: Solve for x
    x = 8,928,514,727.82/83,743.80
  6. Step 6: Final answer
    x = 106,617.02

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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.