Home / 145,364.20-217,527.90-100,781.80

Finding the Fourth Proportional to 145,364.20, 217,527.90 and 100,781.80

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Solution

The fourth proportional to 145,364.20, 217,527.90 and 100,781.80 is: 150,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,364.20 : 217,527.90 = 100,781.80 : x
  2. Step 2: Convert to fraction form
    145,364.20/217,527.90 = 100,781.80/x
  3. Step 3: Cross multiply
    145,364.20x = 217,527.90 × 100,781.80
  4. Step 4: Simplify right side
    145,364.20x = 21,922,853,312.22
  5. Step 5: Solve for x
    x = 21,922,853,312.22/145,364.20
  6. Step 6: Final answer
    x = 150,813.29

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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.