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Finding the Fourth Proportional to 158.99, 237.54 and 117.68

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Solution

The fourth proportional to 158.99, 237.54 and 117.68 is: 175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.99 : 237.54 = 117.68 : x
  2. Step 2: Convert to fraction form
    158.99/237.54 = 117.68/x
  3. Step 3: Cross multiply
    158.99x = 237.54 × 117.68
  4. Step 4: Simplify right side
    158.99x = 27,952.52
  5. Step 5: Solve for x
    x = 27,952.52/158.99
  6. Step 6: Final answer
    x = 175.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.