Home / 155,943.96-215,189.64-92,270.68

Finding the Fourth Proportional to 155,943.96, 215,189.64 and 92,270.68

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Solution

The fourth proportional to 155,943.96, 215,189.64 and 92,270.68 is: 127,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.96 : 215,189.64 = 92,270.68 : x
  2. Step 2: Convert to fraction form
    155,943.96/215,189.64 = 92,270.68/x
  3. Step 3: Cross multiply
    155,943.96x = 215,189.64 × 92,270.68
  4. Step 4: Simplify right side
    155,943.96x = 19,855,694,411.76
  5. Step 5: Solve for x
    x = 19,855,694,411.76/155,943.96
  6. Step 6: Final answer
    x = 127,325.83

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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.