Home / 113,329.52-156,427.68-75,603.68

Finding the Fourth Proportional to 113,329.52, 156,427.68 and 75,603.68

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Solution

The fourth proportional to 113,329.52, 156,427.68 and 75,603.68 is: 104,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,329.52 : 156,427.68 = 75,603.68 : x
  2. Step 2: Convert to fraction form
    113,329.52/156,427.68 = 75,603.68/x
  3. Step 3: Cross multiply
    113,329.52x = 156,427.68 × 75,603.68
  4. Step 4: Simplify right side
    113,329.52x = 11,826,508,261.86
  5. Step 5: Solve for x
    x = 11,826,508,261.86/113,329.52
  6. Step 6: Final answer
    x = 104,355.05

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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.