Home / 155,555.52-233,143.71-80,634.39

Finding the Fourth Proportional to 155,555.52, 233,143.71 and 80,634.39

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Solution

The fourth proportional to 155,555.52, 233,143.71 and 80,634.39 is: 120,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,555.52 : 233,143.71 = 80,634.39 : x
  2. Step 2: Convert to fraction form
    155,555.52/233,143.71 = 80,634.39/x
  3. Step 3: Cross multiply
    155,555.52x = 233,143.71 × 80,634.39
  4. Step 4: Simplify right side
    155,555.52x = 18,799,400,838.19
  5. Step 5: Solve for x
    x = 18,799,400,838.19/155,555.52
  6. Step 6: Final answer
    x = 120,853.32

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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.