Home / 157,667.64-217,586.10-89,694.36

Finding the Fourth Proportional to 157,667.64, 217,586.10 and 89,694.36

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Solution

The fourth proportional to 157,667.64, 217,586.10 and 89,694.36 is: 123,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,667.64 : 217,586.10 = 89,694.36 : x
  2. Step 2: Convert to fraction form
    157,667.64/217,586.10 = 89,694.36/x
  3. Step 3: Cross multiply
    157,667.64x = 217,586.10 × 89,694.36
  4. Step 4: Simplify right side
    157,667.64x = 19,516,245,984.40
  5. Step 5: Solve for x
    x = 19,516,245,984.40/157,667.64
  6. Step 6: Final answer
    x = 123,780.92

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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.