Home / 198,038.38-297,118.85-64,919.66

Finding the Fourth Proportional to 198,038.38, 297,118.85 and 64,919.66

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Solution

The fourth proportional to 198,038.38, 297,118.85 and 64,919.66 is: 97,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,038.38 : 297,118.85 = 64,919.66 : x
  2. Step 2: Convert to fraction form
    198,038.38/297,118.85 = 64,919.66/x
  3. Step 3: Cross multiply
    198,038.38x = 297,118.85 × 64,919.66
  4. Step 4: Simplify right side
    198,038.38x = 19,288,854,721.59
  5. Step 5: Solve for x
    x = 19,288,854,721.59/198,038.38
  6. Step 6: Final answer
    x = 97,399.58

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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.