Home / 79,139.06-118,766.67-63,742.58

Finding the Fourth Proportional to 79,139.06, 118,766.67 and 63,742.58

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Solution

The fourth proportional to 79,139.06, 118,766.67 and 63,742.58 is: 95,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,139.06 : 118,766.67 = 63,742.58 : x
  2. Step 2: Convert to fraction form
    79,139.06/118,766.67 = 63,742.58/x
  3. Step 3: Cross multiply
    79,139.06x = 118,766.67 × 63,742.58
  4. Step 4: Simplify right side
    79,139.06x = 7,570,493,963.81
  5. Step 5: Solve for x
    x = 7,570,493,963.81/79,139.06
  6. Step 6: Final answer
    x = 95,660.65

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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.