Home / 187,021.26-280,947.08-115,996.40

Finding the Fourth Proportional to 187,021.26, 280,947.08 and 115,996.40

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Solution

The fourth proportional to 187,021.26, 280,947.08 and 115,996.40 is: 174,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,021.26 : 280,947.08 = 115,996.40 : x
  2. Step 2: Convert to fraction form
    187,021.26/280,947.08 = 115,996.40/x
  3. Step 3: Cross multiply
    187,021.26x = 280,947.08 × 115,996.40
  4. Step 4: Simplify right side
    187,021.26x = 32,588,849,870.51
  5. Step 5: Solve for x
    x = 32,588,849,870.51/187,021.26
  6. Step 6: Final answer
    x = 174,252.11

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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.