Home / 153,890.38-211,895.04-131,178.43

Finding the Fourth Proportional to 153,890.38, 211,895.04 and 131,178.43

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Solution

The fourth proportional to 153,890.38, 211,895.04 and 131,178.43 is: 180,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,890.38 : 211,895.04 = 131,178.43 : x
  2. Step 2: Convert to fraction form
    153,890.38/211,895.04 = 131,178.43/x
  3. Step 3: Cross multiply
    153,890.38x = 211,895.04 × 131,178.43
  4. Step 4: Simplify right side
    153,890.38x = 27,796,058,671.99
  5. Step 5: Solve for x
    x = 27,796,058,671.99/153,890.38
  6. Step 6: Final answer
    x = 180,622.46

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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.