Home / 119,395.17-164,767.89-65,680.19

Finding the Fourth Proportional to 119,395.17, 164,767.89 and 65,680.19

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Solution

The fourth proportional to 119,395.17, 164,767.89 and 65,680.19 is: 90,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,395.17 : 164,767.89 = 65,680.19 : x
  2. Step 2: Convert to fraction form
    119,395.17/164,767.89 = 65,680.19/x
  3. Step 3: Cross multiply
    119,395.17x = 164,767.89 × 65,680.19
  4. Step 4: Simplify right side
    119,395.17x = 10,821,986,321.10
  5. Step 5: Solve for x
    x = 10,821,986,321.10/119,395.17
  6. Step 6: Final answer
    x = 90,640.07

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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.