Home / 149,411.52-206,202.24-85,760.64

Finding the Fourth Proportional to 149,411.52, 206,202.24 and 85,760.64

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Solution

The fourth proportional to 149,411.52, 206,202.24 and 85,760.64 is: 118,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,411.52 : 206,202.24 = 85,760.64 : x
  2. Step 2: Convert to fraction form
    149,411.52/206,202.24 = 85,760.64/x
  3. Step 3: Cross multiply
    149,411.52x = 206,202.24 × 85,760.64
  4. Step 4: Simplify right side
    149,411.52x = 17,684,036,071.83
  5. Step 5: Solve for x
    x = 17,684,036,071.83/149,411.52
  6. Step 6: Final answer
    x = 118,357.92

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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.