Home / 143,126.92-197,514.18-78,597.32

Finding the Fourth Proportional to 143,126.92, 197,514.18 and 78,597.32

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Solution

The fourth proportional to 143,126.92, 197,514.18 and 78,597.32 is: 108,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,126.92 : 197,514.18 = 78,597.32 : x
  2. Step 2: Convert to fraction form
    143,126.92/197,514.18 = 78,597.32/x
  3. Step 3: Cross multiply
    143,126.92x = 197,514.18 × 78,597.32
  4. Step 4: Simplify right side
    143,126.92x = 15,524,085,210.00
  5. Step 5: Solve for x
    x = 15,524,085,210.00/143,126.92
  6. Step 6: Final answer
    x = 108,463.77

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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.