Home / 117,149.92-161,741.36-76,935.04

Finding the Fourth Proportional to 117,149.92, 161,741.36 and 76,935.04

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Solution

The fourth proportional to 117,149.92, 161,741.36 and 76,935.04 is: 106,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,149.92 : 161,741.36 = 76,935.04 : x
  2. Step 2: Convert to fraction form
    117,149.92/161,741.36 = 76,935.04/x
  3. Step 3: Cross multiply
    117,149.92x = 161,741.36 × 76,935.04
  4. Step 4: Simplify right side
    117,149.92x = 12,443,578,001.25
  5. Step 5: Solve for x
    x = 12,443,578,001.25/117,149.92
  6. Step 6: Final answer
    x = 106,219.26

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1.5x scale

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.