Home / 119,146.56-164,422.40-65,435.04

Finding the Fourth Proportional to 119,146.56, 164,422.40 and 65,435.04

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Solution

The fourth proportional to 119,146.56, 164,422.40 and 65,435.04 is: 90,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,146.56 : 164,422.40 = 65,435.04 : x
  2. Step 2: Convert to fraction form
    119,146.56/164,422.40 = 65,435.04/x
  3. Step 3: Cross multiply
    119,146.56x = 164,422.40 × 65,435.04
  4. Step 4: Simplify right side
    119,146.56x = 10,758,986,320.90
  5. Step 5: Solve for x
    x = 10,758,986,320.90/119,146.56
  6. Step 6: Final answer
    x = 90,300.44

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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.