Home / 123,353.18-170,231.51-75,597.30

Finding the Fourth Proportional to 123,353.18, 170,231.51 and 75,597.30

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Solution

The fourth proportional to 123,353.18, 170,231.51 and 75,597.30 is: 104,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,353.18 : 170,231.51 = 75,597.30 : x
  2. Step 2: Convert to fraction form
    123,353.18/170,231.51 = 75,597.30/x
  3. Step 3: Cross multiply
    123,353.18x = 170,231.51 × 75,597.30
  4. Step 4: Simplify right side
    123,353.18x = 12,869,042,530.92
  5. Step 5: Solve for x
    x = 12,869,042,530.92/123,353.18
  6. Step 6: Final answer
    x = 104,326.80

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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.