Home / 113,285.76-156,346.56-65,538.24

Finding the Fourth Proportional to 113,285.76, 156,346.56 and 65,538.24

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Solution

The fourth proportional to 113,285.76, 156,346.56 and 65,538.24 is: 90,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,285.76 : 156,346.56 = 65,538.24 : x
  2. Step 2: Convert to fraction form
    113,285.76/156,346.56 = 65,538.24/x
  3. Step 3: Cross multiply
    113,285.76x = 156,346.56 × 65,538.24
  4. Step 4: Simplify right side
    113,285.76x = 10,246,678,372.45
  5. Step 5: Solve for x
    x = 10,246,678,372.45/113,285.76
  6. Step 6: Final answer
    x = 90,449.84

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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.