Home / 144,302.66-199,138.18-80,641.52

Finding the Fourth Proportional to 144,302.66, 199,138.18 and 80,641.52

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Solution

The fourth proportional to 144,302.66, 199,138.18 and 80,641.52 is: 111,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,302.66 : 199,138.18 = 80,641.52 : x
  2. Step 2: Convert to fraction form
    144,302.66/199,138.18 = 80,641.52/x
  3. Step 3: Cross multiply
    144,302.66x = 199,138.18 × 80,641.52
  4. Step 4: Simplify right side
    144,302.66x = 16,058,805,525.23
  5. Step 5: Solve for x
    x = 16,058,805,525.23/144,302.66
  6. Step 6: Final answer
    x = 111,285.58

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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.