Home / 100,265.32-138,366.13-55,553.32

Finding the Fourth Proportional to 100,265.32, 138,366.13 and 55,553.32

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Solution

The fourth proportional to 100,265.32, 138,366.13 and 55,553.32 is: 76,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,265.32 : 138,366.13 = 55,553.32 : x
  2. Step 2: Convert to fraction form
    100,265.32/138,366.13 = 55,553.32/x
  3. Step 3: Cross multiply
    100,265.32x = 138,366.13 × 55,553.32
  4. Step 4: Simplify right side
    100,265.32x = 7,686,697,897.05
  5. Step 5: Solve for x
    x = 7,686,697,897.05/100,265.32
  6. Step 6: Final answer
    x = 76,663.58

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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.