Home / 100,748.37-151,117.08-30,622.21

Finding the Fourth Proportional to 100,748.37, 151,117.08 and 30,622.21

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Solution

The fourth proportional to 100,748.37, 151,117.08 and 30,622.21 is: 45,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,748.37 : 151,117.08 = 30,622.21 : x
  2. Step 2: Convert to fraction form
    100,748.37/151,117.08 = 30,622.21/x
  3. Step 3: Cross multiply
    100,748.37x = 151,117.08 × 30,622.21
  4. Step 4: Simplify right side
    100,748.37x = 4,627,538,958.35
  5. Step 5: Solve for x
    x = 4,627,538,958.35/100,748.37
  6. Step 6: Final answer
    x = 45,931.65

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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.