Home / 100,145.16-150,219.36-47,559.96

Finding the Fourth Proportional to 100,145.16, 150,219.36 and 47,559.96

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Solution

The fourth proportional to 100,145.16, 150,219.36 and 47,559.96 is: 71,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,145.16 : 150,219.36 = 47,559.96 : x
  2. Step 2: Convert to fraction form
    100,145.16/150,219.36 = 47,559.96/x
  3. Step 3: Cross multiply
    100,145.16x = 150,219.36 × 47,559.96
  4. Step 4: Simplify right side
    100,145.16x = 7,144,426,752.83
  5. Step 5: Solve for x
    x = 7,144,426,752.83/100,145.16
  6. Step 6: Final answer
    x = 71,340.71

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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.