Home / 143,533.92-198,082.20-79,870.32

Finding the Fourth Proportional to 143,533.92, 198,082.20 and 79,870.32

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Solution

The fourth proportional to 143,533.92, 198,082.20 and 79,870.32 is: 110,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,533.92 : 198,082.20 = 79,870.32 : x
  2. Step 2: Convert to fraction form
    143,533.92/198,082.20 = 79,870.32/x
  3. Step 3: Cross multiply
    143,533.92x = 198,082.20 × 79,870.32
  4. Step 4: Simplify right side
    143,533.92x = 15,820,888,700.30
  5. Step 5: Solve for x
    x = 15,820,888,700.30/143,533.92
  6. Step 6: Final answer
    x = 110,224.04

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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.