Home / 161,822.66-223,223.82-101,288.21

Finding the Fourth Proportional to 161,822.66, 223,223.82 and 101,288.21

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Solution

The fourth proportional to 161,822.66, 223,223.82 and 101,288.21 is: 139,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,822.66 : 223,223.82 = 101,288.21 : x
  2. Step 2: Convert to fraction form
    161,822.66/223,223.82 = 101,288.21/x
  3. Step 3: Cross multiply
    161,822.66x = 223,223.82 × 101,288.21
  4. Step 4: Simplify right side
    161,822.66x = 22,609,941,457.56
  5. Step 5: Solve for x
    x = 22,609,941,457.56/161,822.66
  6. Step 6: Final answer
    x = 139,720.49

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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.