Home / 119,960.21-179,899.36-86,581.13

Finding the Fourth Proportional to 119,960.21, 179,899.36 and 86,581.13

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Solution

The fourth proportional to 119,960.21, 179,899.36 and 86,581.13 is: 129,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,960.21 : 179,899.36 = 86,581.13 : x
  2. Step 2: Convert to fraction form
    119,960.21/179,899.36 = 86,581.13/x
  3. Step 3: Cross multiply
    119,960.21x = 179,899.36 × 86,581.13
  4. Step 4: Simplify right side
    119,960.21x = 15,575,889,875.08
  5. Step 5: Solve for x
    x = 15,575,889,875.08/119,960.21
  6. Step 6: Final answer
    x = 129,842.14

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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.