Home / 121,336.40-182,004.60-100,341.20

Finding the Fourth Proportional to 121,336.40, 182,004.60 and 100,341.20

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Solution

The fourth proportional to 121,336.40, 182,004.60 and 100,341.20 is: 150,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,336.40 : 182,004.60 = 100,341.20 : x
  2. Step 2: Convert to fraction form
    121,336.40/182,004.60 = 100,341.20/x
  3. Step 3: Cross multiply
    121,336.40x = 182,004.60 × 100,341.20
  4. Step 4: Simplify right side
    121,336.40x = 18,262,559,969.52
  5. Step 5: Solve for x
    x = 18,262,559,969.52/121,336.40
  6. Step 6: Final answer
    x = 150,511.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.