Home / 155,943.72-215,201.88-84,323.52

Finding the Fourth Proportional to 155,943.72, 215,201.88 and 84,323.52

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Solution

The fourth proportional to 155,943.72, 215,201.88 and 84,323.52 is: 116,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.72 : 215,201.88 = 84,323.52 : x
  2. Step 2: Convert to fraction form
    155,943.72/215,201.88 = 84,323.52/x
  3. Step 3: Cross multiply
    155,943.72x = 215,201.88 × 84,323.52
  4. Step 4: Simplify right side
    155,943.72x = 18,146,580,032.22
  5. Step 5: Solve for x
    x = 18,146,580,032.22/155,943.72
  6. Step 6: Final answer
    x = 116,366.21

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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.