Home / 159,787.19-220,498.94-91,756.31

Finding the Fourth Proportional to 159,787.19, 220,498.94 and 91,756.31

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Solution

The fourth proportional to 159,787.19, 220,498.94 and 91,756.31 is: 126,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,787.19 : 220,498.94 = 91,756.31 : x
  2. Step 2: Convert to fraction form
    159,787.19/220,498.94 = 91,756.31/x
  3. Step 3: Cross multiply
    159,787.19x = 220,498.94 × 91,756.31
  4. Step 4: Simplify right side
    159,787.19x = 20,232,167,532.04
  5. Step 5: Solve for x
    x = 20,232,167,532.04/159,787.19
  6. Step 6: Final answer
    x = 126,619.46

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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.