Home / 153,794.62-212,236.68-90,132.40

Finding the Fourth Proportional to 153,794.62, 212,236.68 and 90,132.40

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Solution

The fourth proportional to 153,794.62, 212,236.68 and 90,132.40 is: 124,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,794.62 : 212,236.68 = 90,132.40 : x
  2. Step 2: Convert to fraction form
    153,794.62/212,236.68 = 90,132.40/x
  3. Step 3: Cross multiply
    153,794.62x = 212,236.68 × 90,132.40
  4. Step 4: Simplify right side
    153,794.62x = 19,129,401,336.43
  5. Step 5: Solve for x
    x = 19,129,401,336.43/153,794.62
  6. Step 6: Final answer
    x = 124,382.77

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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.