Home / 107,774.85-161,386.25-89,961.22

Finding the Fourth Proportional to 107,774.85, 161,386.25 and 89,961.22

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Solution

The fourth proportional to 107,774.85, 161,386.25 and 89,961.22 is: 134,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,774.85 : 161,386.25 = 89,961.22 : x
  2. Step 2: Convert to fraction form
    107,774.85/161,386.25 = 89,961.22/x
  3. Step 3: Cross multiply
    107,774.85x = 161,386.25 × 89,961.22
  4. Step 4: Simplify right side
    107,774.85x = 14,518,503,239.25
  5. Step 5: Solve for x
    x = 14,518,503,239.25/107,774.85
  6. Step 6: Final answer
    x = 134,711.42

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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.