Home / 123,351.42-170,228.07-75,631.08

Finding the Fourth Proportional to 123,351.42, 170,228.07 and 75,631.08

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Solution

The fourth proportional to 123,351.42, 170,228.07 and 75,631.08 is: 104,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,351.42 : 170,228.07 = 75,631.08 : x
  2. Step 2: Convert to fraction form
    123,351.42/170,228.07 = 75,631.08/x
  3. Step 3: Cross multiply
    123,351.42x = 170,228.07 × 75,631.08
  4. Step 4: Simplify right side
    123,351.42x = 12,874,532,780.42
  5. Step 5: Solve for x
    x = 12,874,532,780.42/123,351.42
  6. Step 6: Final answer
    x = 104,372.80

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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.