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Finding the Fourth Proportional to 158,491.95, 237,949.08 and 91,979.82

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Solution

The fourth proportional to 158,491.95, 237,949.08 and 91,979.82 is: 138,092.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,491.95 : 237,949.08 = 91,979.82 : x
  2. Step 2: Convert to fraction form
    158,491.95/237,949.08 = 91,979.82/x
  3. Step 3: Cross multiply
    158,491.95x = 237,949.08 × 91,979.82
  4. Step 4: Simplify right side
    158,491.95x = 21,886,513,547.57
  5. Step 5: Solve for x
    x = 21,886,513,547.57/158,491.95
  6. Step 6: Final answer
    x = 138,092.27

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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.