Home / 113,193.16-156,137.07-67,221.57

Finding the Fourth Proportional to 113,193.16, 156,137.07 and 67,221.57

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Solution

The fourth proportional to 113,193.16, 156,137.07 and 67,221.57 is: 92,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,193.16 : 156,137.07 = 67,221.57 : x
  2. Step 2: Convert to fraction form
    113,193.16/156,137.07 = 67,221.57/x
  3. Step 3: Cross multiply
    113,193.16x = 156,137.07 × 67,221.57
  4. Step 4: Simplify right side
    113,193.16x = 10,495,778,980.60
  5. Step 5: Solve for x
    x = 10,495,778,980.60/113,193.16
  6. Step 6: Final answer
    x = 92,724.50

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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.