Home / 165,718.80-228,678-93,116.16

Finding the Fourth Proportional to 165,718.80, 228,678 and 93,116.16

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Solution

The fourth proportional to 165,718.80, 228,678 and 93,116.16 is: 128,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,718.80 : 228,678 = 93,116.16 : x
  2. Step 2: Convert to fraction form
    165,718.80/228,678 = 93,116.16/x
  3. Step 3: Cross multiply
    165,718.80x = 228,678 × 93,116.16
  4. Step 4: Simplify right side
    165,718.80x = 21,293,617,236.48
  5. Step 5: Solve for x
    x = 21,293,617,236.48/165,718.80
  6. Step 6: Final answer
    x = 128,492.47

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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.