Home / 100,183.93-138,252.51-57,162.29

Finding the Fourth Proportional to 100,183.93, 138,252.51 and 57,162.29

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Solution

The fourth proportional to 100,183.93, 138,252.51 and 57,162.29 is: 78,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,183.93 : 138,252.51 = 57,162.29 : x
  2. Step 2: Convert to fraction form
    100,183.93/138,252.51 = 57,162.29/x
  3. Step 3: Cross multiply
    100,183.93x = 138,252.51 × 57,162.29
  4. Step 4: Simplify right side
    100,183.93x = 7,902,829,378.59
  5. Step 5: Solve for x
    x = 7,902,829,378.59/100,183.93
  6. Step 6: Final answer
    x = 78,883.21

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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.