Home / 143,359.52-197,841.21-78,833.69

Finding the Fourth Proportional to 143,359.52, 197,841.21 and 78,833.69

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Solution

The fourth proportional to 143,359.52, 197,841.21 and 78,833.69 is: 108,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,359.52 : 197,841.21 = 78,833.69 : x
  2. Step 2: Convert to fraction form
    143,359.52/197,841.21 = 78,833.69/x
  3. Step 3: Cross multiply
    143,359.52x = 197,841.21 × 78,833.69
  4. Step 4: Simplify right side
    143,359.52x = 15,596,552,618.36
  5. Step 5: Solve for x
    x = 15,596,552,618.36/143,359.52
  6. Step 6: Final answer
    x = 108,793.28

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1.5x scale

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.