Home / 98,002.02-135,178.26-77,826.90

Finding the Fourth Proportional to 98,002.02, 135,178.26 and 77,826.90

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Solution

The fourth proportional to 98,002.02, 135,178.26 and 77,826.90 is: 107,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,002.02 : 135,178.26 = 77,826.90 : x
  2. Step 2: Convert to fraction form
    98,002.02/135,178.26 = 77,826.90/x
  3. Step 3: Cross multiply
    98,002.02x = 135,178.26 × 77,826.90
  4. Step 4: Simplify right side
    98,002.02x = 10,520,504,923.19
  5. Step 5: Solve for x
    x = 10,520,504,923.19/98,002.02
  6. Step 6: Final answer
    x = 107,349.88

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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.