Home / 113,689.20-156,774.63-75,435.33

Finding the Fourth Proportional to 113,689.20, 156,774.63 and 75,435.33

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Solution

The fourth proportional to 113,689.20, 156,774.63 and 75,435.33 is: 104,023.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,689.20 : 156,774.63 = 75,435.33 : x
  2. Step 2: Convert to fraction form
    113,689.20/156,774.63 = 75,435.33/x
  3. Step 3: Cross multiply
    113,689.20x = 156,774.63 × 75,435.33
  4. Step 4: Simplify right side
    113,689.20x = 11,826,345,949.68
  5. Step 5: Solve for x
    x = 11,826,345,949.68/113,689.20
  6. Step 6: Final answer
    x = 104,023.48

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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.