Home / 157,888.08-217,900.68-86,278.96

Finding the Fourth Proportional to 157,888.08, 217,900.68 and 86,278.96

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Solution

The fourth proportional to 157,888.08, 217,900.68 and 86,278.96 is: 119,073.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,888.08 : 217,900.68 = 86,278.96 : x
  2. Step 2: Convert to fraction form
    157,888.08/217,900.68 = 86,278.96/x
  3. Step 3: Cross multiply
    157,888.08x = 217,900.68 × 86,278.96
  4. Step 4: Simplify right side
    157,888.08x = 18,800,244,053.69
  5. Step 5: Solve for x
    x = 18,800,244,053.69/157,888.08
  6. Step 6: Final answer
    x = 119,073.23

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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.