Home / 126,686.16-189,981.48-51,766.32

Finding the Fourth Proportional to 126,686.16, 189,981.48 and 51,766.32

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Solution

The fourth proportional to 126,686.16, 189,981.48 and 51,766.32 is: 77,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,686.16 : 189,981.48 = 51,766.32 : x
  2. Step 2: Convert to fraction form
    126,686.16/189,981.48 = 51,766.32/x
  3. Step 3: Cross multiply
    126,686.16x = 189,981.48 × 51,766.32
  4. Step 4: Simplify right side
    126,686.16x = 9,834,642,087.75
  5. Step 5: Solve for x
    x = 9,834,642,087.75/126,686.16
  6. Step 6: Final answer
    x = 77,629.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.