Home / 100,900.11-151,350.08-47,579.66

Finding the Fourth Proportional to 100,900.11, 151,350.08 and 47,579.66

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Solution

The fourth proportional to 100,900.11, 151,350.08 and 47,579.66 is: 71,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900.11 : 151,350.08 = 47,579.66 : x
  2. Step 2: Convert to fraction form
    100,900.11/151,350.08 = 47,579.66/x
  3. Step 3: Cross multiply
    100,900.11x = 151,350.08 × 47,579.66
  4. Step 4: Simplify right side
    100,900.11x = 7,201,184,352.72
  5. Step 5: Solve for x
    x = 7,201,184,352.72/100,900.11
  6. Step 6: Final answer
    x = 71,369.44

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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.