Home / 90,772.48-136,178.16-38,151.64

Finding the Fourth Proportional to 90,772.48, 136,178.16 and 38,151.64

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Solution

The fourth proportional to 90,772.48, 136,178.16 and 38,151.64 is: 57,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,772.48 : 136,178.16 = 38,151.64 : x
  2. Step 2: Convert to fraction form
    90,772.48/136,178.16 = 38,151.64/x
  3. Step 3: Cross multiply
    90,772.48x = 136,178.16 × 38,151.64
  4. Step 4: Simplify right side
    90,772.48x = 5,195,420,136.18
  5. Step 5: Solve for x
    x = 5,195,420,136.18/90,772.48
  6. Step 6: Final answer
    x = 57,235.63

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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.