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Finding the Fourth Proportional to 113,321.59, 156,416.75 and 75,595.75

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Solution

The fourth proportional to 113,321.59, 156,416.75 and 75,595.75 is: 104,344.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,321.59 : 156,416.75 = 75,595.75 : x
  2. Step 2: Convert to fraction form
    113,321.59/156,416.75 = 75,595.75/x
  3. Step 3: Cross multiply
    113,321.59x = 156,416.75 × 75,595.75
  4. Step 4: Simplify right side
    113,321.59x = 11,824,441,528.81
  5. Step 5: Solve for x
    x = 11,824,441,528.81/113,321.59
  6. Step 6: Final answer
    x = 104,344.12

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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.