Home / 134,642.34-185,806.44-78,086.52

Finding the Fourth Proportional to 134,642.34, 185,806.44 and 78,086.52

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Solution

The fourth proportional to 134,642.34, 185,806.44 and 78,086.52 is: 107,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,642.34 : 185,806.44 = 78,086.52 : x
  2. Step 2: Convert to fraction form
    134,642.34/185,806.44 = 78,086.52/x
  3. Step 3: Cross multiply
    134,642.34x = 185,806.44 × 78,086.52
  4. Step 4: Simplify right side
    134,642.34x = 14,508,978,293.19
  5. Step 5: Solve for x
    x = 14,508,978,293.19/134,642.34
  6. Step 6: Final answer
    x = 107,759.40

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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.