Home / 105,361.75-145,399.35-57,614.95

Finding the Fourth Proportional to 105,361.75, 145,399.35 and 57,614.95

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Solution

The fourth proportional to 105,361.75, 145,399.35 and 57,614.95 is: 79,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,361.75 : 145,399.35 = 57,614.95 : x
  2. Step 2: Convert to fraction form
    105,361.75/145,399.35 = 57,614.95/x
  3. Step 3: Cross multiply
    105,361.75x = 145,399.35 × 57,614.95
  4. Step 4: Simplify right side
    105,361.75x = 8,377,176,280.28
  5. Step 5: Solve for x
    x = 8,377,176,280.28/105,361.75
  6. Step 6: Final answer
    x = 79,508.70

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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.