Home / 120,400.33-166,089.47-74,445.29

Finding the Fourth Proportional to 120,400.33, 166,089.47 and 74,445.29

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Solution

The fourth proportional to 120,400.33, 166,089.47 and 74,445.29 is: 102,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,400.33 : 166,089.47 = 74,445.29 : x
  2. Step 2: Convert to fraction form
    120,400.33/166,089.47 = 74,445.29/x
  3. Step 3: Cross multiply
    120,400.33x = 166,089.47 × 74,445.29
  4. Step 4: Simplify right side
    120,400.33x = 12,364,578,760.10
  5. Step 5: Solve for x
    x = 12,364,578,760.10/120,400.33
  6. Step 6: Final answer
    x = 102,695.56

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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.