Home / 100,320.07-150,480.38-25,440.26

Finding the Fourth Proportional to 100,320.07, 150,480.38 and 25,440.26

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Solution

The fourth proportional to 100,320.07, 150,480.38 and 25,440.26 is: 38,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,320.07 : 150,480.38 = 25,440.26 : x
  2. Step 2: Convert to fraction form
    100,320.07/150,480.38 = 25,440.26/x
  3. Step 3: Cross multiply
    100,320.07x = 150,480.38 × 25,440.26
  4. Step 4: Simplify right side
    100,320.07x = 3,828,260,149.75
  5. Step 5: Solve for x
    x = 3,828,260,149.75/100,320.07
  6. Step 6: Final answer
    x = 38,160.46

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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.