Home / 155,491.38-214,579.62-86,581.82

Finding the Fourth Proportional to 155,491.38, 214,579.62 and 86,581.82

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Solution

The fourth proportional to 155,491.38, 214,579.62 and 86,581.82 is: 119,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,491.38 : 214,579.62 = 86,581.82 : x
  2. Step 2: Convert to fraction form
    155,491.38/214,579.62 = 86,581.82/x
  3. Step 3: Cross multiply
    155,491.38x = 214,579.62 × 86,581.82
  4. Step 4: Simplify right side
    155,491.38x = 18,578,692,961.61
  5. Step 5: Solve for x
    x = 18,578,692,961.61/155,491.38
  6. Step 6: Final answer
    x = 119,483.75

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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.