Home / 209,177.81-313,641.95-82,836.17

Finding the Fourth Proportional to 209,177.81, 313,641.95 and 82,836.17

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Solution

The fourth proportional to 209,177.81, 313,641.95 and 82,836.17 is: 124,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,177.81 : 313,641.95 = 82,836.17 : x
  2. Step 2: Convert to fraction form
    209,177.81/313,641.95 = 82,836.17/x
  3. Step 3: Cross multiply
    209,177.81x = 313,641.95 × 82,836.17
  4. Step 4: Simplify right side
    209,177.81x = 25,980,898,259.26
  5. Step 5: Solve for x
    x = 25,980,898,259.26/209,177.81
  6. Step 6: Final answer
    x = 124,204.85

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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.