Home / 117,077.50-161,529.24-71,708.19

Finding the Fourth Proportional to 117,077.50, 161,529.24 and 71,708.19

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Solution

The fourth proportional to 117,077.50, 161,529.24 and 71,708.19 is: 98,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,077.50 : 161,529.24 = 71,708.19 : x
  2. Step 2: Convert to fraction form
    117,077.50/161,529.24 = 71,708.19/x
  3. Step 3: Cross multiply
    117,077.50x = 161,529.24 × 71,708.19
  4. Step 4: Simplify right side
    117,077.50x = 11,582,968,692.29
  5. Step 5: Solve for x
    x = 11,582,968,692.29/117,077.50
  6. Step 6: Final answer
    x = 98,934.20

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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.