Home / 112,373.92-155,027.28-67,636

Finding the Fourth Proportional to 112,373.92, 155,027.28 and 67,636

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Solution

The fourth proportional to 112,373.92, 155,027.28 and 67,636 is: 93,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,373.92 : 155,027.28 = 67,636 : x
  2. Step 2: Convert to fraction form
    112,373.92/155,027.28 = 67,636/x
  3. Step 3: Cross multiply
    112,373.92x = 155,027.28 × 67,636
  4. Step 4: Simplify right side
    112,373.92x = 10,485,425,110.08
  5. Step 5: Solve for x
    x = 10,485,425,110.08/112,373.92
  6. Step 6: Final answer
    x = 93,308.35

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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.