Home / 151,621.78-209,313.03-117,553.18

Finding the Fourth Proportional to 151,621.78, 209,313.03 and 117,553.18

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Solution

The fourth proportional to 151,621.78, 209,313.03 and 117,553.18 is: 162,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,621.78 : 209,313.03 = 117,553.18 : x
  2. Step 2: Convert to fraction form
    151,621.78/209,313.03 = 117,553.18/x
  3. Step 3: Cross multiply
    151,621.78x = 209,313.03 × 117,553.18
  4. Step 4: Simplify right side
    151,621.78x = 24,605,412,291.94
  5. Step 5: Solve for x
    x = 24,605,412,291.94/151,621.78
  6. Step 6: Final answer
    x = 162,281.52

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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.