Home / 100,530.17-150,565.51-47,976.56

Finding the Fourth Proportional to 100,530.17, 150,565.51 and 47,976.56

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Solution

The fourth proportional to 100,530.17, 150,565.51 and 47,976.56 is: 71,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,530.17 : 150,565.51 = 47,976.56 : x
  2. Step 2: Convert to fraction form
    100,530.17/150,565.51 = 47,976.56/x
  3. Step 3: Cross multiply
    100,530.17x = 150,565.51 × 47,976.56
  4. Step 4: Simplify right side
    100,530.17x = 7,223,614,231.74
  5. Step 5: Solve for x
    x = 7,223,614,231.74/100,530.17
  6. Step 6: Final answer
    x = 71,855.19

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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.