Home / 100,440.72-150,554.16-47,738.88

Finding the Fourth Proportional to 100,440.72, 150,554.16 and 47,738.88

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Solution

The fourth proportional to 100,440.72, 150,554.16 and 47,738.88 is: 71,557.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,440.72 : 150,554.16 = 47,738.88 : x
  2. Step 2: Convert to fraction form
    100,440.72/150,554.16 = 47,738.88/x
  3. Step 3: Cross multiply
    100,440.72x = 150,554.16 × 47,738.88
  4. Step 4: Simplify right side
    100,440.72x = 7,187,286,977.74
  5. Step 5: Solve for x
    x = 7,187,286,977.74/100,440.72
  6. Step 6: Final answer
    x = 71,557.50

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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.