Home / 100,520.42-150,776.58-25,642.40

Finding the Fourth Proportional to 100,520.42, 150,776.58 and 25,642.40

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Solution

The fourth proportional to 100,520.42, 150,776.58 and 25,642.40 is: 38,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,520.42 : 150,776.58 = 25,642.40 : x
  2. Step 2: Convert to fraction form
    100,520.42/150,776.58 = 25,642.40/x
  3. Step 3: Cross multiply
    100,520.42x = 150,776.58 × 25,642.40
  4. Step 4: Simplify right side
    100,520.42x = 3,866,273,374.99
  5. Step 5: Solve for x
    x = 3,866,273,374.99/100,520.42
  6. Step 6: Final answer
    x = 38,462.57

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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.