Home / 117,211.05-161,751.65-63,495.90

Finding the Fourth Proportional to 117,211.05, 161,751.65 and 63,495.90

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Solution

The fourth proportional to 117,211.05, 161,751.65 and 63,495.90 is: 87,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,211.05 : 161,751.65 = 63,495.90 : x
  2. Step 2: Convert to fraction form
    117,211.05/161,751.65 = 63,495.90/x
  3. Step 3: Cross multiply
    117,211.05x = 161,751.65 × 63,495.90
  4. Step 4: Simplify right side
    117,211.05x = 10,270,566,275.76
  5. Step 5: Solve for x
    x = 10,270,566,275.76/117,211.05
  6. Step 6: Final answer
    x = 87,624.56

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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.