Home / 102,132.88-153,218.76-31,993.36

Finding the Fourth Proportional to 102,132.88, 153,218.76 and 31,993.36

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Solution

The fourth proportional to 102,132.88, 153,218.76 and 31,993.36 is: 47,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,132.88 : 153,218.76 = 31,993.36 : x
  2. Step 2: Convert to fraction form
    102,132.88/153,218.76 = 31,993.36/x
  3. Step 3: Cross multiply
    102,132.88x = 153,218.76 × 31,993.36
  4. Step 4: Simplify right side
    102,132.88x = 4,901,982,947.43
  5. Step 5: Solve for x
    x = 4,901,982,947.43/102,132.88
  6. Step 6: Final answer
    x = 47,996.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.