Home / 100,669.45-151,005.08-30,548.76

Finding the Fourth Proportional to 100,669.45, 151,005.08 and 30,548.76

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Solution

The fourth proportional to 100,669.45, 151,005.08 and 30,548.76 is: 45,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,669.45 : 151,005.08 = 30,548.76 : x
  2. Step 2: Convert to fraction form
    100,669.45/151,005.08 = 30,548.76/x
  3. Step 3: Cross multiply
    100,669.45x = 151,005.08 × 30,548.76
  4. Step 4: Simplify right side
    100,669.45x = 4,613,017,947.70
  5. Step 5: Solve for x
    x = 4,613,017,947.70/100,669.45
  6. Step 6: Final answer
    x = 45,823.41

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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.