Home / 109,008.42-150,426.78-63,690.60

Finding the Fourth Proportional to 109,008.42, 150,426.78 and 63,690.60

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Solution

The fourth proportional to 109,008.42, 150,426.78 and 63,690.60 is: 87,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,008.42 : 150,426.78 = 63,690.60 : x
  2. Step 2: Convert to fraction form
    109,008.42/150,426.78 = 63,690.60/x
  3. Step 3: Cross multiply
    109,008.42x = 150,426.78 × 63,690.60
  4. Step 4: Simplify right side
    109,008.42x = 9,580,771,874.27
  5. Step 5: Solve for x
    x = 9,580,771,874.27/109,008.42
  6. Step 6: Final answer
    x = 87,890.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.