Home / 142,928.60-197,079.94-91,176.66

Finding the Fourth Proportional to 142,928.60, 197,079.94 and 91,176.66

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Solution

The fourth proportional to 142,928.60, 197,079.94 and 91,176.66 is: 125,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.60 : 197,079.94 = 91,176.66 : x
  2. Step 2: Convert to fraction form
    142,928.60/197,079.94 = 91,176.66/x
  3. Step 3: Cross multiply
    142,928.60x = 197,079.94 × 91,176.66
  4. Step 4: Simplify right side
    142,928.60x = 17,969,090,682.20
  5. Step 5: Solve for x
    x = 17,969,090,682.20/142,928.60
  6. Step 6: Final answer
    x = 125,720.75

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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.