Home / 103,796.64-155,126.22-75,775.70

Finding the Fourth Proportional to 103,796.64, 155,126.22 and 75,775.70

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Solution

The fourth proportional to 103,796.64, 155,126.22 and 75,775.70 is: 113,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,796.64 : 155,126.22 = 75,775.70 : x
  2. Step 2: Convert to fraction form
    103,796.64/155,126.22 = 75,775.70/x
  3. Step 3: Cross multiply
    103,796.64x = 155,126.22 × 75,775.70
  4. Step 4: Simplify right side
    103,796.64x = 11,754,798,296.67
  5. Step 5: Solve for x
    x = 11,754,798,296.67/103,796.64
  6. Step 6: Final answer
    x = 113,248.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.