Home / 161,717.34-221,553.57-155,656.86

Finding the Fourth Proportional to 161,717.34, 221,553.57 and 155,656.86

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Solution

The fourth proportional to 161,717.34, 221,553.57 and 155,656.86 is: 213,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,717.34 : 221,553.57 = 155,656.86 : x
  2. Step 2: Convert to fraction form
    161,717.34/221,553.57 = 155,656.86/x
  3. Step 3: Cross multiply
    161,717.34x = 221,553.57 × 155,656.86
  4. Step 4: Simplify right side
    161,717.34x = 34,486,333,027.99
  5. Step 5: Solve for x
    x = 34,486,333,027.99/161,717.34
  6. Step 6: Final answer
    x = 213,250.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.