Home / 232,111.68-320,298.09-128,736.12

Finding the Fourth Proportional to 232,111.68, 320,298.09 and 128,736.12

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Solution

The fourth proportional to 232,111.68, 320,298.09 and 128,736.12 is: 177,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,111.68 : 320,298.09 = 128,736.12 : x
  2. Step 2: Convert to fraction form
    232,111.68/320,298.09 = 128,736.12/x
  3. Step 3: Cross multiply
    232,111.68x = 320,298.09 × 128,736.12
  4. Step 4: Simplify right side
    232,111.68x = 41,233,934,384.09
  5. Step 5: Solve for x
    x = 41,233,934,384.09/232,111.68
  6. Step 6: Final answer
    x = 177,646.96

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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.