Home / 161,981.22-223,558.66-98,306.70

Finding the Fourth Proportional to 161,981.22, 223,558.66 and 98,306.70

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Solution

The fourth proportional to 161,981.22, 223,558.66 and 98,306.70 is: 135,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,981.22 : 223,558.66 = 98,306.70 : x
  2. Step 2: Convert to fraction form
    161,981.22/223,558.66 = 98,306.70/x
  3. Step 3: Cross multiply
    161,981.22x = 223,558.66 × 98,306.70
  4. Step 4: Simplify right side
    161,981.22x = 21,977,314,121.02
  5. Step 5: Solve for x
    x = 21,977,314,121.02/161,981.22
  6. Step 6: Final answer
    x = 135,678.16

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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.