Home / 122,048.27-168,352.07-80,655.19

Finding the Fourth Proportional to 122,048.27, 168,352.07 and 80,655.19

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Solution

The fourth proportional to 122,048.27, 168,352.07 and 80,655.19 is: 111,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,048.27 : 168,352.07 = 80,655.19 : x
  2. Step 2: Convert to fraction form
    122,048.27/168,352.07 = 80,655.19/x
  3. Step 3: Cross multiply
    122,048.27x = 168,352.07 × 80,655.19
  4. Step 4: Simplify right side
    122,048.27x = 13,578,468,769.25
  5. Step 5: Solve for x
    x = 13,578,468,769.25/122,048.27
  6. Step 6: Final answer
    x = 111,254.91

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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.