Home / 143,657.34-198,260.91-79,995.12

Finding the Fourth Proportional to 143,657.34, 198,260.91 and 79,995.12

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Solution

The fourth proportional to 143,657.34, 198,260.91 and 79,995.12 is: 110,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,657.34 : 198,260.91 = 79,995.12 : x
  2. Step 2: Convert to fraction form
    143,657.34/198,260.91 = 79,995.12/x
  3. Step 3: Cross multiply
    143,657.34x = 198,260.91 × 79,995.12
  4. Step 4: Simplify right side
    143,657.34x = 15,859,905,286.76
  5. Step 5: Solve for x
    x = 15,859,905,286.76/143,657.34
  6. Step 6: Final answer
    x = 110,400.94

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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.