Home / 157,749.12-217,698.59-89,775.87

Finding the Fourth Proportional to 157,749.12, 217,698.59 and 89,775.87

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Solution

The fourth proportional to 157,749.12, 217,698.59 and 89,775.87 is: 123,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,749.12 : 217,698.59 = 89,775.87 : x
  2. Step 2: Convert to fraction form
    157,749.12/217,698.59 = 89,775.87/x
  3. Step 3: Cross multiply
    157,749.12x = 217,698.59 × 89,775.87
  4. Step 4: Simplify right side
    157,749.12x = 19,544,078,777.65
  5. Step 5: Solve for x
    x = 19,544,078,777.65/157,749.12
  6. Step 6: Final answer
    x = 123,893.43

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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.