Home / 117,879.78-162,677.74-64,168.40

Finding the Fourth Proportional to 117,879.78, 162,677.74 and 64,168.40

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Solution

The fourth proportional to 117,879.78, 162,677.74 and 64,168.40 is: 88,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,879.78 : 162,677.74 = 64,168.40 : x
  2. Step 2: Convert to fraction form
    117,879.78/162,677.74 = 64,168.40/x
  3. Step 3: Cross multiply
    117,879.78x = 162,677.74 × 64,168.40
  4. Step 4: Simplify right side
    117,879.78x = 10,438,770,291.42
  5. Step 5: Solve for x
    x = 10,438,770,291.42/117,879.78
  6. Step 6: Final answer
    x = 88,554.38

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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.