Home / 143,817.76-198,475.32-80,156.04

Finding the Fourth Proportional to 143,817.76, 198,475.32 and 80,156.04

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Solution

The fourth proportional to 143,817.76, 198,475.32 and 80,156.04 is: 110,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,817.76 : 198,475.32 = 80,156.04 : x
  2. Step 2: Convert to fraction form
    143,817.76/198,475.32 = 80,156.04/x
  3. Step 3: Cross multiply
    143,817.76x = 198,475.32 × 80,156.04
  4. Step 4: Simplify right side
    143,817.76x = 15,908,995,688.93
  5. Step 5: Solve for x
    x = 15,908,995,688.93/143,817.76
  6. Step 6: Final answer
    x = 110,619.13

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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.