Home / 119,085.12-164,321.76-71,328.96

Finding the Fourth Proportional to 119,085.12, 164,321.76 and 71,328.96

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Solution

The fourth proportional to 119,085.12, 164,321.76 and 71,328.96 is: 98,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,085.12 : 164,321.76 = 71,328.96 : x
  2. Step 2: Convert to fraction form
    119,085.12/164,321.76 = 71,328.96/x
  3. Step 3: Cross multiply
    119,085.12x = 164,321.76 × 71,328.96
  4. Step 4: Simplify right side
    119,085.12x = 11,720,900,246.17
  5. Step 5: Solve for x
    x = 11,720,900,246.17/119,085.12
  6. Step 6: Final answer
    x = 98,424.56

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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.