Home / 115,175.19-158,946.69-64,188

Finding the Fourth Proportional to 115,175.19, 158,946.69 and 64,188

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Solution

The fourth proportional to 115,175.19, 158,946.69 and 64,188 is: 88,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,175.19 : 158,946.69 = 64,188 : x
  2. Step 2: Convert to fraction form
    115,175.19/158,946.69 = 64,188/x
  3. Step 3: Cross multiply
    115,175.19x = 158,946.69 × 64,188
  4. Step 4: Simplify right side
    115,175.19x = 10,202,470,137.72
  5. Step 5: Solve for x
    x = 10,202,470,137.72/115,175.19
  6. Step 6: Final answer
    x = 88,582.19

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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.