Home / 100,595.18-138,833.61-57,590.66

Finding the Fourth Proportional to 100,595.18, 138,833.61 and 57,590.66

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Solution

The fourth proportional to 100,595.18, 138,833.61 and 57,590.66 is: 79,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,595.18 : 138,833.61 = 57,590.66 : x
  2. Step 2: Convert to fraction form
    100,595.18/138,833.61 = 57,590.66/x
  3. Step 3: Cross multiply
    100,595.18x = 138,833.61 × 57,590.66
  4. Step 4: Simplify right side
    100,595.18x = 7,995,519,230.08
  5. Step 5: Solve for x
    x = 7,995,519,230.08/100,595.18
  6. Step 6: Final answer
    x = 79,482.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.