Home / 196,129.48-270,335.23-138,694.72

Finding the Fourth Proportional to 196,129.48, 270,335.23 and 138,694.72

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Solution

The fourth proportional to 196,129.48, 270,335.23 and 138,694.72 is: 191,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,129.48 : 270,335.23 = 138,694.72 : x
  2. Step 2: Convert to fraction form
    196,129.48/270,335.23 = 138,694.72/x
  3. Step 3: Cross multiply
    196,129.48x = 270,335.23 × 138,694.72
  4. Step 4: Simplify right side
    196,129.48x = 37,494,069,030.99
  5. Step 5: Solve for x
    x = 37,494,069,030.99/196,129.48
  6. Step 6: Final answer
    x = 191,169.98

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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.