Home / 113,581.68-156,742.95-68,260.37

Finding the Fourth Proportional to 113,581.68, 156,742.95 and 68,260.37

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Solution

The fourth proportional to 113,581.68, 156,742.95 and 68,260.37 is: 94,199.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,581.68 : 156,742.95 = 68,260.37 : x
  2. Step 2: Convert to fraction form
    113,581.68/156,742.95 = 68,260.37/x
  3. Step 3: Cross multiply
    113,581.68x = 156,742.95 × 68,260.37
  4. Step 4: Simplify right side
    113,581.68x = 10,699,330,978.18
  5. Step 5: Solve for x
    x = 10,699,330,978.18/113,581.68
  6. Step 6: Final answer
    x = 94,199.44

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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.