Home / 165,820.32-228,868.97-105,379.17

Finding the Fourth Proportional to 165,820.32, 228,868.97 and 105,379.17

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Solution

The fourth proportional to 165,820.32, 228,868.97 and 105,379.17 is: 145,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,820.32 : 228,868.97 = 105,379.17 : x
  2. Step 2: Convert to fraction form
    165,820.32/228,868.97 = 105,379.17/x
  3. Step 3: Cross multiply
    165,820.32x = 228,868.97 × 105,379.17
  4. Step 4: Simplify right side
    165,820.32x = 24,118,021,570.46
  5. Step 5: Solve for x
    x = 24,118,021,570.46/165,820.32
  6. Step 6: Final answer
    x = 145,446.72

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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.