Home / 165,742.92-228,725.28-90,291.40

Finding the Fourth Proportional to 165,742.92, 228,725.28 and 90,291.40

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Solution

The fourth proportional to 165,742.92, 228,725.28 and 90,291.40 is: 124,602.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,742.92 : 228,725.28 = 90,291.40 : x
  2. Step 2: Convert to fraction form
    165,742.92/228,725.28 = 90,291.40/x
  3. Step 3: Cross multiply
    165,742.92x = 228,725.28 × 90,291.40
  4. Step 4: Simplify right side
    165,742.92x = 20,651,925,746.59
  5. Step 5: Solve for x
    x = 20,651,925,746.59/165,742.92
  6. Step 6: Final answer
    x = 124,602.16

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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.