Home / 113,383.62-156,436.93-73,120.50

Finding the Fourth Proportional to 113,383.62, 156,436.93 and 73,120.50

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Solution

The fourth proportional to 113,383.62, 156,436.93 and 73,120.50 is: 100,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,383.62 : 156,436.93 = 73,120.50 : x
  2. Step 2: Convert to fraction form
    113,383.62/156,436.93 = 73,120.50/x
  3. Step 3: Cross multiply
    113,383.62x = 156,436.93 × 73,120.50
  4. Step 4: Simplify right side
    113,383.62x = 11,438,746,357.26
  5. Step 5: Solve for x
    x = 11,438,746,357.26/113,383.62
  6. Step 6: Final answer
    x = 100,885.35

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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.