Home / 123,270.34-170,113.08-66,681.73

Finding the Fourth Proportional to 123,270.34, 170,113.08 and 66,681.73

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Solution

The fourth proportional to 123,270.34, 170,113.08 and 66,681.73 is: 92,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,270.34 : 170,113.08 = 66,681.73 : x
  2. Step 2: Convert to fraction form
    123,270.34/170,113.08 = 66,681.73/x
  3. Step 3: Cross multiply
    123,270.34x = 170,113.08 × 66,681.73
  4. Step 4: Simplify right side
    123,270.34x = 11,343,434,470.03
  5. Step 5: Solve for x
    x = 11,343,434,470.03/123,270.34
  6. Step 6: Final answer
    x = 92,020.79

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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.