Home / 143,865.06-198,529.24-79,337.02

Finding the Fourth Proportional to 143,865.06, 198,529.24 and 79,337.02

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Solution

The fourth proportional to 143,865.06, 198,529.24 and 79,337.02 is: 109,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865.06 : 198,529.24 = 79,337.02 : x
  2. Step 2: Convert to fraction form
    143,865.06/198,529.24 = 79,337.02/x
  3. Step 3: Cross multiply
    143,865.06x = 198,529.24 × 79,337.02
  4. Step 4: Simplify right side
    143,865.06x = 15,750,718,284.46
  5. Step 5: Solve for x
    x = 15,750,718,284.46/143,865.06
  6. Step 6: Final answer
    x = 109,482.58

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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.