Home / 113,881.55-170,976.23-66,545.15

Finding the Fourth Proportional to 113,881.55, 170,976.23 and 66,545.15

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Solution

The fourth proportional to 113,881.55, 170,976.23 and 66,545.15 is: 99,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,881.55 : 170,976.23 = 66,545.15 : x
  2. Step 2: Convert to fraction form
    113,881.55/170,976.23 = 66,545.15/x
  3. Step 3: Cross multiply
    113,881.55x = 170,976.23 × 66,545.15
  4. Step 4: Simplify right side
    113,881.55x = 11,377,638,539.06
  5. Step 5: Solve for x
    x = 11,377,638,539.06/113,881.55
  6. Step 6: Final answer
    x = 99,907.65

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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.