Home / 143,290.19-197,707.53-88,891.30

Finding the Fourth Proportional to 143,290.19, 197,707.53 and 88,891.30

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Solution

The fourth proportional to 143,290.19, 197,707.53 and 88,891.30 is: 122,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,290.19 : 197,707.53 = 88,891.30 : x
  2. Step 2: Convert to fraction form
    143,290.19/197,707.53 = 88,891.30/x
  3. Step 3: Cross multiply
    143,290.19x = 197,707.53 × 88,891.30
  4. Step 4: Simplify right side
    143,290.19x = 17,574,479,385.91
  5. Step 5: Solve for x
    x = 17,574,479,385.91/143,290.19
  6. Step 6: Final answer
    x = 122,649.56

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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.