Home / 165,223.86-228,009.51-89,772.36

Finding the Fourth Proportional to 165,223.86, 228,009.51 and 89,772.36

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Solution

The fourth proportional to 165,223.86, 228,009.51 and 89,772.36 is: 123,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,223.86 : 228,009.51 = 89,772.36 : x
  2. Step 2: Convert to fraction form
    165,223.86/228,009.51 = 89,772.36/x
  3. Step 3: Cross multiply
    165,223.86x = 228,009.51 × 89,772.36
  4. Step 4: Simplify right side
    165,223.86x = 20,468,951,815.14
  5. Step 5: Solve for x
    x = 20,468,951,815.14/165,223.86
  6. Step 6: Final answer
    x = 123,886.17

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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.