Home / 157,783.58-217,761.91-89,787.32

Finding the Fourth Proportional to 157,783.58, 217,761.91 and 89,787.32

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Solution

The fourth proportional to 157,783.58, 217,761.91 and 89,787.32 is: 123,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,783.58 : 217,761.91 = 89,787.32 : x
  2. Step 2: Convert to fraction form
    157,783.58/217,761.91 = 89,787.32/x
  3. Step 3: Cross multiply
    157,783.58x = 217,761.91 × 89,787.32
  4. Step 4: Simplify right side
    157,783.58x = 19,552,256,983.70
  5. Step 5: Solve for x
    x = 19,552,256,983.70/157,783.58
  6. Step 6: Final answer
    x = 123,918.20

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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.