Home / 261,166.40-391,779.03-83,611.16

Finding the Fourth Proportional to 261,166.40, 391,779.03 and 83,611.16

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Solution

The fourth proportional to 261,166.40, 391,779.03 and 83,611.16 is: 125,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,166.40 : 391,779.03 = 83,611.16 : x
  2. Step 2: Convert to fraction form
    261,166.40/391,779.03 = 83,611.16/x
  3. Step 3: Cross multiply
    261,166.40x = 391,779.03 × 83,611.16
  4. Step 4: Simplify right side
    261,166.40x = 32,757,099,161.97
  5. Step 5: Solve for x
    x = 32,757,099,161.97/261,166.40
  6. Step 6: Final answer
    x = 125,426.16

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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.