Home / 199,421.50-299,329.30-87,179.18

Finding the Fourth Proportional to 199,421.50, 299,329.30 and 87,179.18

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Solution

The fourth proportional to 199,421.50, 299,329.30 and 87,179.18 is: 130,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.50 : 299,329.30 = 87,179.18 : x
  2. Step 2: Convert to fraction form
    199,421.50/299,329.30 = 87,179.18/x
  3. Step 3: Cross multiply
    199,421.50x = 299,329.30 × 87,179.18
  4. Step 4: Simplify right side
    199,421.50x = 26,095,282,923.97
  5. Step 5: Solve for x
    x = 26,095,282,923.97/199,421.50
  6. Step 6: Final answer
    x = 130,854.91

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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.