Home / 120,510.47-166,301.56-66,794.33

Finding the Fourth Proportional to 120,510.47, 166,301.56 and 66,794.33

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Solution

The fourth proportional to 120,510.47, 166,301.56 and 66,794.33 is: 92,174.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.47 : 166,301.56 = 66,794.33 : x
  2. Step 2: Convert to fraction form
    120,510.47/166,301.56 = 66,794.33/x
  3. Step 3: Cross multiply
    120,510.47x = 166,301.56 × 66,794.33
  4. Step 4: Simplify right side
    120,510.47x = 11,108,001,278.15
  5. Step 5: Solve for x
    x = 11,108,001,278.15/120,510.47
  6. Step 6: Final answer
    x = 92,174.57

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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.