Home / 143,444.09-197,947.49-79,780.52

Finding the Fourth Proportional to 143,444.09, 197,947.49 and 79,780.52

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Solution

The fourth proportional to 143,444.09, 197,947.49 and 79,780.52 is: 110,094.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,444.09 : 197,947.49 = 79,780.52 : x
  2. Step 2: Convert to fraction form
    143,444.09/197,947.49 = 79,780.52/x
  3. Step 3: Cross multiply
    143,444.09x = 197,947.49 × 79,780.52
  4. Step 4: Simplify right side
    143,444.09x = 15,792,352,296.25
  5. Step 5: Solve for x
    x = 15,792,352,296.25/143,444.09
  6. Step 6: Final answer
    x = 110,094.13

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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.