Home / 207,020.80-285,605.76-130,514.72

Finding the Fourth Proportional to 207,020.80, 285,605.76 and 130,514.72

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Solution

The fourth proportional to 207,020.80, 285,605.76 and 130,514.72 is: 180,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,020.80 : 285,605.76 = 130,514.72 : x
  2. Step 2: Convert to fraction form
    207,020.80/285,605.76 = 130,514.72/x
  3. Step 3: Cross multiply
    207,020.80x = 285,605.76 × 130,514.72
  4. Step 4: Simplify right side
    207,020.80x = 37,275,755,796.79
  5. Step 5: Solve for x
    x = 37,275,755,796.79/207,020.80
  6. Step 6: Final answer
    x = 180,058.02

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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.