Home / 157,746.92-217,709.84-89,780.42

Finding the Fourth Proportional to 157,746.92, 217,709.84 and 89,780.42

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Solution

The fourth proportional to 157,746.92, 217,709.84 and 89,780.42 is: 123,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,746.92 : 217,709.84 = 89,780.42 : x
  2. Step 2: Convert to fraction form
    157,746.92/217,709.84 = 89,780.42/x
  3. Step 3: Cross multiply
    157,746.92x = 217,709.84 × 89,780.42
  4. Step 4: Simplify right side
    157,746.92x = 19,546,081,642.06
  5. Step 5: Solve for x
    x = 19,546,081,642.06/157,746.92
  6. Step 6: Final answer
    x = 123,907.85

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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.