Home / 123,306.75-170,164.53-66,719.34

Finding the Fourth Proportional to 123,306.75, 170,164.53 and 66,719.34

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Solution

The fourth proportional to 123,306.75, 170,164.53 and 66,719.34 is: 92,073.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,306.75 : 170,164.53 = 66,719.34 : x
  2. Step 2: Convert to fraction form
    123,306.75/170,164.53 = 66,719.34/x
  3. Step 3: Cross multiply
    123,306.75x = 170,164.53 × 66,719.34
  4. Step 4: Simplify right side
    123,306.75x = 11,353,265,133.01
  5. Step 5: Solve for x
    x = 11,353,265,133.01/123,306.75
  6. Step 6: Final answer
    x = 92,073.35

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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.