Home / 131,490.15-197,235.23-75,502.95

Finding the Fourth Proportional to 131,490.15, 197,235.23 and 75,502.95

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Solution

The fourth proportional to 131,490.15, 197,235.23 and 75,502.95 is: 113,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,490.15 : 197,235.23 = 75,502.95 : x
  2. Step 2: Convert to fraction form
    131,490.15/197,235.23 = 75,502.95/x
  3. Step 3: Cross multiply
    131,490.15x = 197,235.23 × 75,502.95
  4. Step 4: Simplify right side
    131,490.15x = 14,891,841,331.41
  5. Step 5: Solve for x
    x = 14,891,841,331.41/131,490.15
  6. Step 6: Final answer
    x = 113,254.43

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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.