Home / 100,267.16-138,366.50-54,944.16

Finding the Fourth Proportional to 100,267.16, 138,366.50 and 54,944.16

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Solution

The fourth proportional to 100,267.16, 138,366.50 and 54,944.16 is: 75,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,267.16 : 138,366.50 = 54,944.16 : x
  2. Step 2: Convert to fraction form
    100,267.16/138,366.50 = 54,944.16/x
  3. Step 3: Cross multiply
    100,267.16x = 138,366.50 × 54,944.16
  4. Step 4: Simplify right side
    100,267.16x = 7,602,430,839.92
  5. Step 5: Solve for x
    x = 7,602,430,839.92/100,267.16
  6. Step 6: Final answer
    x = 75,821.75

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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.