Home / 109,516.66-151,055.03-71,205.18

Finding the Fourth Proportional to 109,516.66, 151,055.03 and 71,205.18

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Solution

The fourth proportional to 109,516.66, 151,055.03 and 71,205.18 is: 98,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,516.66 : 151,055.03 = 71,205.18 : x
  2. Step 2: Convert to fraction form
    109,516.66/151,055.03 = 71,205.18/x
  3. Step 3: Cross multiply
    109,516.66x = 151,055.03 × 71,205.18
  4. Step 4: Simplify right side
    109,516.66x = 10,755,899,812.08
  5. Step 5: Solve for x
    x = 10,755,899,812.08/109,516.66
  6. Step 6: Final answer
    x = 98,212.46

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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.