Home / 198,516.65-297,607.57-86,112.23

Finding the Fourth Proportional to 198,516.65, 297,607.57 and 86,112.23

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Solution

The fourth proportional to 198,516.65, 297,607.57 and 86,112.23 is: 129,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,516.65 : 297,607.57 = 86,112.23 : x
  2. Step 2: Convert to fraction form
    198,516.65/297,607.57 = 86,112.23/x
  3. Step 3: Cross multiply
    198,516.65x = 297,607.57 × 86,112.23
  4. Step 4: Simplify right side
    198,516.65x = 25,627,649,814.26
  5. Step 5: Solve for x
    x = 25,627,649,814.26/198,516.65
  6. Step 6: Final answer
    x = 129,095.72

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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.