Home / 100,162.19-138,234.81-63,864.93

Finding the Fourth Proportional to 100,162.19, 138,234.81 and 63,864.93

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Solution

The fourth proportional to 100,162.19, 138,234.81 and 63,864.93 is: 88,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,162.19 : 138,234.81 = 63,864.93 : x
  2. Step 2: Convert to fraction form
    100,162.19/138,234.81 = 63,864.93/x
  3. Step 3: Cross multiply
    100,162.19x = 138,234.81 × 63,864.93
  4. Step 4: Simplify right side
    100,162.19x = 8,828,356,185.33
  5. Step 5: Solve for x
    x = 8,828,356,185.33/100,162.19
  6. Step 6: Final answer
    x = 88,140.60

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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.