Home / 157,717.13-217,650.03-86,097.20

Finding the Fourth Proportional to 157,717.13, 217,650.03 and 86,097.20

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Solution

The fourth proportional to 157,717.13, 217,650.03 and 86,097.20 is: 118,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,717.13 : 217,650.03 = 86,097.20 : x
  2. Step 2: Convert to fraction form
    157,717.13/217,650.03 = 86,097.20/x
  3. Step 3: Cross multiply
    157,717.13x = 217,650.03 × 86,097.20
  4. Step 4: Simplify right side
    157,717.13x = 18,739,058,162.92
  5. Step 5: Solve for x
    x = 18,739,058,162.92/157,717.13
  6. Step 6: Final answer
    x = 118,814.35

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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.