Home / 165,918.76-228,990.18-105,495.40

Finding the Fourth Proportional to 165,918.76, 228,990.18 and 105,495.40

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Solution

The fourth proportional to 165,918.76, 228,990.18 and 105,495.40 is: 145,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,918.76 : 228,990.18 = 105,495.40 : x
  2. Step 2: Convert to fraction form
    165,918.76/228,990.18 = 105,495.40/x
  3. Step 3: Cross multiply
    165,918.76x = 228,990.18 × 105,495.40
  4. Step 4: Simplify right side
    165,918.76x = 24,157,410,635.17
  5. Step 5: Solve for x
    x = 24,157,410,635.17/165,918.76
  6. Step 6: Final answer
    x = 145,597.83

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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.