Home / 137,165.02-189,211.52-79,797.90

Finding the Fourth Proportional to 137,165.02, 189,211.52 and 79,797.90

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Solution

The fourth proportional to 137,165.02, 189,211.52 and 79,797.90 is: 110,076.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,165.02 : 189,211.52 = 79,797.90 : x
  2. Step 2: Convert to fraction form
    137,165.02/189,211.52 = 79,797.90/x
  3. Step 3: Cross multiply
    137,165.02x = 189,211.52 × 79,797.90
  4. Step 4: Simplify right side
    137,165.02x = 15,098,681,951.81
  5. Step 5: Solve for x
    x = 15,098,681,951.81/137,165.02
  6. Step 6: Final answer
    x = 110,076.77

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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.