Home / 232,130.56-320,340-131,528.56

Finding the Fourth Proportional to 232,130.56, 320,340 and 131,528.56

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Solution

The fourth proportional to 232,130.56, 320,340 and 131,528.56 is: 181,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,130.56 : 320,340 = 131,528.56 : x
  2. Step 2: Convert to fraction form
    232,130.56/320,340 = 131,528.56/x
  3. Step 3: Cross multiply
    232,130.56x = 320,340 × 131,528.56
  4. Step 4: Simplify right side
    232,130.56x = 42,133,858,910.40
  5. Step 5: Solve for x
    x = 42,133,858,910.40/232,130.56
  6. Step 6: Final answer
    x = 181,509.31

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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.