Home / 117,707.15-162,439.07-63,995.78

Finding the Fourth Proportional to 117,707.15, 162,439.07 and 63,995.78

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Solution

The fourth proportional to 117,707.15, 162,439.07 and 63,995.78 is: 88,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,707.15 : 162,439.07 = 63,995.78 : x
  2. Step 2: Convert to fraction form
    117,707.15/162,439.07 = 63,995.78/x
  3. Step 3: Cross multiply
    117,707.15x = 162,439.07 × 63,995.78
  4. Step 4: Simplify right side
    117,707.15x = 10,395,413,854.95
  5. Step 5: Solve for x
    x = 10,395,413,854.95/117,707.15
  6. Step 6: Final answer
    x = 88,315.91

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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.