Home / 157,883.65-217,879.06-86,264.21

Finding the Fourth Proportional to 157,883.65, 217,879.06 and 86,264.21

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Solution

The fourth proportional to 157,883.65, 217,879.06 and 86,264.21 is: 119,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,883.65 : 217,879.06 = 86,264.21 : x
  2. Step 2: Convert to fraction form
    157,883.65/217,879.06 = 86,264.21/x
  3. Step 3: Cross multiply
    157,883.65x = 217,879.06 × 86,264.21
  4. Step 4: Simplify right side
    157,883.65x = 18,795,164,986.44
  5. Step 5: Solve for x
    x = 18,795,164,986.44/157,883.65
  6. Step 6: Final answer
    x = 119,044.40

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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.