Home / 123,308.76-170,166.18-66,720.20

Finding the Fourth Proportional to 123,308.76, 170,166.18 and 66,720.20

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Solution

The fourth proportional to 123,308.76, 170,166.18 and 66,720.20 is: 92,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,308.76 : 170,166.18 = 66,720.20 : x
  2. Step 2: Convert to fraction form
    123,308.76/170,166.18 = 66,720.20/x
  3. Step 3: Cross multiply
    123,308.76x = 170,166.18 × 66,720.20
  4. Step 4: Simplify right side
    123,308.76x = 11,353,521,562.84
  5. Step 5: Solve for x
    x = 11,353,521,562.84/123,308.76
  6. Step 6: Final answer
    x = 92,073.93

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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.