Home / 100,350.24-151,028.16-75,518.88

Finding the Fourth Proportional to 100,350.24, 151,028.16 and 75,518.88

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Solution

The fourth proportional to 100,350.24, 151,028.16 and 75,518.88 is: 113,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,350.24 : 151,028.16 = 75,518.88 : x
  2. Step 2: Convert to fraction form
    100,350.24/151,028.16 = 75,518.88/x
  3. Step 3: Cross multiply
    100,350.24x = 151,028.16 × 75,518.88
  4. Step 4: Simplify right side
    100,350.24x = 11,405,477,491.66
  5. Step 5: Solve for x
    x = 11,405,477,491.66/100,350.24
  6. Step 6: Final answer
    x = 113,656.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.