Home / 120,853.91-166,704.50-71,762.26

Finding the Fourth Proportional to 120,853.91, 166,704.50 and 71,762.26

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Solution

The fourth proportional to 120,853.91, 166,704.50 and 71,762.26 is: 98,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853.91 : 166,704.50 = 71,762.26 : x
  2. Step 2: Convert to fraction form
    120,853.91/166,704.50 = 71,762.26/x
  3. Step 3: Cross multiply
    120,853.91x = 166,704.50 × 71,762.26
  4. Step 4: Simplify right side
    120,853.91x = 11,963,091,672.17
  5. Step 5: Solve for x
    x = 11,963,091,672.17/120,853.91
  6. Step 6: Final answer
    x = 98,988.04

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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.