Home / 109,559.76-151,192.44-61,812.68

Finding the Fourth Proportional to 109,559.76, 151,192.44 and 61,812.68

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Solution

The fourth proportional to 109,559.76, 151,192.44 and 61,812.68 is: 85,301.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,559.76 : 151,192.44 = 61,812.68 : x
  2. Step 2: Convert to fraction form
    109,559.76/151,192.44 = 61,812.68/x
  3. Step 3: Cross multiply
    109,559.76x = 151,192.44 × 61,812.68
  4. Step 4: Simplify right side
    109,559.76x = 9,345,609,912.14
  5. Step 5: Solve for x
    x = 9,345,609,912.14/109,559.76
  6. Step 6: Final answer
    x = 85,301.48

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1.5x scale

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.