Home / 161,830.91-223,222.42-107,381.90

Finding the Fourth Proportional to 161,830.91, 223,222.42 and 107,381.90

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Solution

The fourth proportional to 161,830.91, 223,222.42 and 107,381.90 is: 148,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,830.91 : 223,222.42 = 107,381.90 : x
  2. Step 2: Convert to fraction form
    161,830.91/223,222.42 = 107,381.90/x
  3. Step 3: Cross multiply
    161,830.91x = 223,222.42 × 107,381.90
  4. Step 4: Simplify right side
    161,830.91x = 23,970,047,582.20
  5. Step 5: Solve for x
    x = 23,970,047,582.20/161,830.91
  6. Step 6: Final answer
    x = 148,117.86

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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.