Home / 131,053.29-196,246.41-86,613.45

Finding the Fourth Proportional to 131,053.29, 196,246.41 and 86,613.45

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Solution

The fourth proportional to 131,053.29, 196,246.41 and 86,613.45 is: 129,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,053.29 : 196,246.41 = 86,613.45 : x
  2. Step 2: Convert to fraction form
    131,053.29/196,246.41 = 86,613.45/x
  3. Step 3: Cross multiply
    131,053.29x = 196,246.41 × 86,613.45
  4. Step 4: Simplify right side
    131,053.29x = 16,997,578,620.21
  5. Step 5: Solve for x
    x = 16,997,578,620.21/131,053.29
  6. Step 6: Final answer
    x = 129,699.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.