Home / 172,320.40-258,488.70-53,995.60

Finding the Fourth Proportional to 172,320.40, 258,488.70 and 53,995.60

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Solution

The fourth proportional to 172,320.40, 258,488.70 and 53,995.60 is: 80,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,320.40 : 258,488.70 = 53,995.60 : x
  2. Step 2: Convert to fraction form
    172,320.40/258,488.70 = 53,995.60/x
  3. Step 3: Cross multiply
    172,320.40x = 258,488.70 × 53,995.60
  4. Step 4: Simplify right side
    172,320.40x = 13,957,252,449.72
  5. Step 5: Solve for x
    x = 13,957,252,449.72/172,320.40
  6. Step 6: Final answer
    x = 80,995.94

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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.