Home / 172,434.04-258,680.22-78,947.08

Finding the Fourth Proportional to 172,434.04, 258,680.22 and 78,947.08

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Solution

The fourth proportional to 172,434.04, 258,680.22 and 78,947.08 is: 118,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,434.04 : 258,680.22 = 78,947.08 : x
  2. Step 2: Convert to fraction form
    172,434.04/258,680.22 = 78,947.08/x
  3. Step 3: Cross multiply
    172,434.04x = 258,680.22 × 78,947.08
  4. Step 4: Simplify right side
    172,434.04x = 20,422,048,022.76
  5. Step 5: Solve for x
    x = 20,422,048,022.76/172,434.04
  6. Step 6: Final answer
    x = 118,433.97

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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.