Home / 107,811.56-147,702.38-103,771.24

Finding the Fourth Proportional to 107,811.56, 147,702.38 and 103,771.24

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Solution

The fourth proportional to 107,811.56, 147,702.38 and 103,771.24 is: 142,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.56 : 147,702.38 = 103,771.24 : x
  2. Step 2: Convert to fraction form
    107,811.56/147,702.38 = 103,771.24/x
  3. Step 3: Cross multiply
    107,811.56x = 147,702.38 × 103,771.24
  4. Step 4: Simplify right side
    107,811.56x = 15,327,259,123.55
  5. Step 5: Solve for x
    x = 15,327,259,123.55/107,811.56
  6. Step 6: Final answer
    x = 142,167.12

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.