Home / 100,004.20-150,006.30-72,356.20

Finding the Fourth Proportional to 100,004.20, 150,006.30 and 72,356.20

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Solution

The fourth proportional to 100,004.20, 150,006.30 and 72,356.20 is: 108,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,004.20 : 150,006.30 = 72,356.20 : x
  2. Step 2: Convert to fraction form
    100,004.20/150,006.30 = 72,356.20/x
  3. Step 3: Cross multiply
    100,004.20x = 150,006.30 × 72,356.20
  4. Step 4: Simplify right side
    100,004.20x = 10,853,885,844.06
  5. Step 5: Solve for x
    x = 10,853,885,844.06/100,004.20
  6. Step 6: Final answer
    x = 108,534.30

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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.