Home / 165,315.09-228,133.74-89,863.59

Finding the Fourth Proportional to 165,315.09, 228,133.74 and 89,863.59

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Solution

The fourth proportional to 165,315.09, 228,133.74 and 89,863.59 is: 124,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,315.09 : 228,133.74 = 89,863.59 : x
  2. Step 2: Convert to fraction form
    165,315.09/228,133.74 = 89,863.59/x
  3. Step 3: Cross multiply
    165,315.09x = 228,133.74 × 89,863.59
  4. Step 4: Simplify right side
    165,315.09x = 20,500,916,876.53
  5. Step 5: Solve for x
    x = 20,500,916,876.53/165,315.09
  6. Step 6: Final answer
    x = 124,011.16

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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.