Home / 115,200.62-158,943.73-74,973.59

Finding the Fourth Proportional to 115,200.62, 158,943.73 and 74,973.59

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Solution

The fourth proportional to 115,200.62, 158,943.73 and 74,973.59 is: 103,442.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,200.62 : 158,943.73 = 74,973.59 : x
  2. Step 2: Convert to fraction form
    115,200.62/158,943.73 = 74,973.59/x
  3. Step 3: Cross multiply
    115,200.62x = 158,943.73 × 74,973.59
  4. Step 4: Simplify right side
    115,200.62x = 11,916,582,046.09
  5. Step 5: Solve for x
    x = 11,916,582,046.09/115,200.62
  6. Step 6: Final answer
    x = 103,442.00

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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.