Home / 100,570.07-150,873.57-47,979.56

Finding the Fourth Proportional to 100,570.07, 150,873.57 and 47,979.56

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Solution

The fourth proportional to 100,570.07, 150,873.57 and 47,979.56 is: 71,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,570.07 : 150,873.57 = 47,979.56 : x
  2. Step 2: Convert to fraction form
    100,570.07/150,873.57 = 47,979.56/x
  3. Step 3: Cross multiply
    100,570.07x = 150,873.57 × 47,979.56
  4. Step 4: Simplify right side
    100,570.07x = 7,238,847,881.41
  5. Step 5: Solve for x
    x = 7,238,847,881.41/100,570.07
  6. Step 6: Final answer
    x = 71,978.15

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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.