Home / 194,721.80-291,920.70-82,488.20

Finding the Fourth Proportional to 194,721.80, 291,920.70 and 82,488.20

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Solution

The fourth proportional to 194,721.80, 291,920.70 and 82,488.20 is: 123,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,721.80 : 291,920.70 = 82,488.20 : x
  2. Step 2: Convert to fraction form
    194,721.80/291,920.70 = 82,488.20/x
  3. Step 3: Cross multiply
    194,721.80x = 291,920.70 × 82,488.20
  4. Step 4: Simplify right side
    194,721.80x = 24,080,013,085.74
  5. Step 5: Solve for x
    x = 24,080,013,085.74/194,721.80
  6. Step 6: Final answer
    x = 123,663.67

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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.