Home / 155,711.70-233,567.55-76,979.70

Finding the Fourth Proportional to 155,711.70, 233,567.55 and 76,979.70

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Solution

The fourth proportional to 155,711.70, 233,567.55 and 76,979.70 is: 115,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,711.70 : 233,567.55 = 76,979.70 : x
  2. Step 2: Convert to fraction form
    155,711.70/233,567.55 = 76,979.70/x
  3. Step 3: Cross multiply
    155,711.70x = 233,567.55 × 76,979.70
  4. Step 4: Simplify right side
    155,711.70x = 17,979,959,928.74
  5. Step 5: Solve for x
    x = 17,979,959,928.74/155,711.70
  6. Step 6: Final answer
    x = 115,469.55

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1.5x scale

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.