Home / 102,519.90-153,779.85-47,115.90

Finding the Fourth Proportional to 102,519.90, 153,779.85 and 47,115.90

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Solution

The fourth proportional to 102,519.90, 153,779.85 and 47,115.90 is: 70,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,519.90 : 153,779.85 = 47,115.90 : x
  2. Step 2: Convert to fraction form
    102,519.90/153,779.85 = 47,115.90/x
  3. Step 3: Cross multiply
    102,519.90x = 153,779.85 × 47,115.90
  4. Step 4: Simplify right side
    102,519.90x = 7,245,476,034.62
  5. Step 5: Solve for x
    x = 7,245,476,034.62/102,519.90
  6. Step 6: Final answer
    x = 70,673.85

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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.