Home / 157,845.02-217,830.92-86,229.65

Finding the Fourth Proportional to 157,845.02, 217,830.92 and 86,229.65

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Solution

The fourth proportional to 157,845.02, 217,830.92 and 86,229.65 is: 118,999.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,845.02 : 217,830.92 = 86,229.65 : x
  2. Step 2: Convert to fraction form
    157,845.02/217,830.92 = 86,229.65/x
  3. Step 3: Cross multiply
    157,845.02x = 217,830.92 × 86,229.65
  4. Step 4: Simplify right side
    157,845.02x = 18,783,484,104.21
  5. Step 5: Solve for x
    x = 18,783,484,104.21/157,845.02
  6. Step 6: Final answer
    x = 118,999.54

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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.