Home / 161,947.60-223,318.10-139,363.16

Finding the Fourth Proportional to 161,947.60, 223,318.10 and 139,363.16

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Solution

The fourth proportional to 161,947.60, 223,318.10 and 139,363.16 is: 192,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,947.60 : 223,318.10 = 139,363.16 : x
  2. Step 2: Convert to fraction form
    161,947.60/223,318.10 = 139,363.16/x
  3. Step 3: Cross multiply
    161,947.60x = 223,318.10 × 139,363.16
  4. Step 4: Simplify right side
    161,947.60x = 31,122,316,101.20
  5. Step 5: Solve for x
    x = 31,122,316,101.20/161,947.60
  6. Step 6: Final answer
    x = 192,175.22

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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.