Home / 117,785.64-162,545.04-64,071.12

Finding the Fourth Proportional to 117,785.64, 162,545.04 and 64,071.12

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Solution

The fourth proportional to 117,785.64, 162,545.04 and 64,071.12 is: 88,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,785.64 : 162,545.04 = 64,071.12 : x
  2. Step 2: Convert to fraction form
    117,785.64/162,545.04 = 64,071.12/x
  3. Step 3: Cross multiply
    117,785.64x = 162,545.04 × 64,071.12
  4. Step 4: Simplify right side
    117,785.64x = 10,414,442,763.24
  5. Step 5: Solve for x
    x = 10,414,442,763.24/117,785.64
  6. Step 6: Final answer
    x = 88,418.61

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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.