Home / 143,205.18-197,627.49-86,584.02

Finding the Fourth Proportional to 143,205.18, 197,627.49 and 86,584.02

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Solution

The fourth proportional to 143,205.18, 197,627.49 and 86,584.02 is: 119,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.18 : 197,627.49 = 86,584.02 : x
  2. Step 2: Convert to fraction form
    143,205.18/197,627.49 = 86,584.02/x
  3. Step 3: Cross multiply
    143,205.18x = 197,627.49 × 86,584.02
  4. Step 4: Simplify right side
    143,205.18x = 17,111,382,546.71
  5. Step 5: Solve for x
    x = 17,111,382,546.71/143,205.18
  6. Step 6: Final answer
    x = 119,488.57

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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.