Home / 100,265.91-138,366.96-59,981.37

Finding the Fourth Proportional to 100,265.91, 138,366.96 and 59,981.37

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Solution

The fourth proportional to 100,265.91, 138,366.96 and 59,981.37 is: 82,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,265.91 : 138,366.96 = 59,981.37 : x
  2. Step 2: Convert to fraction form
    100,265.91/138,366.96 = 59,981.37/x
  3. Step 3: Cross multiply
    100,265.91x = 138,366.96 × 59,981.37
  4. Step 4: Simplify right side
    100,265.91x = 8,299,439,823.54
  5. Step 5: Solve for x
    x = 8,299,439,823.54/100,265.91
  6. Step 6: Final answer
    x = 82,774.29

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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.