Home / 143,189.95-197,596.68-79,531.84

Finding the Fourth Proportional to 143,189.95, 197,596.68 and 79,531.84

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Solution

The fourth proportional to 143,189.95, 197,596.68 and 79,531.84 is: 109,750.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.95 : 197,596.68 = 79,531.84 : x
  2. Step 2: Convert to fraction form
    143,189.95/197,596.68 = 79,531.84/x
  3. Step 3: Cross multiply
    143,189.95x = 197,596.68 × 79,531.84
  4. Step 4: Simplify right side
    143,189.95x = 15,715,227,538.29
  5. Step 5: Solve for x
    x = 15,715,227,538.29/143,189.95
  6. Step 6: Final answer
    x = 109,750.91

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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.