Home / 109,868.81-151,632.91-62,121.13

Finding the Fourth Proportional to 109,868.81, 151,632.91 and 62,121.13

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Solution

The fourth proportional to 109,868.81, 151,632.91 and 62,121.13 is: 85,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,868.81 : 151,632.91 = 62,121.13 : x
  2. Step 2: Convert to fraction form
    109,868.81/151,632.91 = 62,121.13/x
  3. Step 3: Cross multiply
    109,868.81x = 151,632.91 × 62,121.13
  4. Step 4: Simplify right side
    109,868.81x = 9,419,607,412.96
  5. Step 5: Solve for x
    x = 9,419,607,412.96/109,868.81
  6. Step 6: Final answer
    x = 85,735.05

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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.