Home / 143,397.03-197,876.07-84,451.11

Finding the Fourth Proportional to 143,397.03, 197,876.07 and 84,451.11

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Solution

The fourth proportional to 143,397.03, 197,876.07 and 84,451.11 is: 116,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,397.03 : 197,876.07 = 84,451.11 : x
  2. Step 2: Convert to fraction form
    143,397.03/197,876.07 = 84,451.11/x
  3. Step 3: Cross multiply
    143,397.03x = 197,876.07 × 84,451.11
  4. Step 4: Simplify right side
    143,397.03x = 16,710,853,753.94
  5. Step 5: Solve for x
    x = 16,710,853,753.94/143,397.03
  6. Step 6: Final answer
    x = 116,535.56

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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.