Home / 117,619.40-162,315.78-63,904.52

Finding the Fourth Proportional to 117,619.40, 162,315.78 and 63,904.52

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Solution

The fourth proportional to 117,619.40, 162,315.78 and 63,904.52 is: 88,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,619.40 : 162,315.78 = 63,904.52 : x
  2. Step 2: Convert to fraction form
    117,619.40/162,315.78 = 63,904.52/x
  3. Step 3: Cross multiply
    117,619.40x = 162,315.78 × 63,904.52
  4. Step 4: Simplify right side
    117,619.40x = 10,372,712,009.33
  5. Step 5: Solve for x
    x = 10,372,712,009.33/117,619.40
  6. Step 6: Final answer
    x = 88,188.79

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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.