Home / 123,392.18-170,281.26-66,803.54

Finding the Fourth Proportional to 123,392.18, 170,281.26 and 66,803.54

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Solution

The fourth proportional to 123,392.18, 170,281.26 and 66,803.54 is: 92,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,392.18 : 170,281.26 = 66,803.54 : x
  2. Step 2: Convert to fraction form
    123,392.18/170,281.26 = 66,803.54/x
  3. Step 3: Cross multiply
    123,392.18x = 170,281.26 × 66,803.54
  4. Step 4: Simplify right side
    123,392.18x = 11,375,390,963.66
  5. Step 5: Solve for x
    x = 11,375,390,963.66/123,392.18
  6. Step 6: Final answer
    x = 92,188.91

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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.