Home / 117,620.20-176,430.30-89,626.60

Finding the Fourth Proportional to 117,620.20, 176,430.30 and 89,626.60

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Solution

The fourth proportional to 117,620.20, 176,430.30 and 89,626.60 is: 134,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.20 : 176,430.30 = 89,626.60 : x
  2. Step 2: Convert to fraction form
    117,620.20/176,430.30 = 89,626.60/x
  3. Step 3: Cross multiply
    117,620.20x = 176,430.30 × 89,626.60
  4. Step 4: Simplify right side
    117,620.20x = 15,812,847,925.98
  5. Step 5: Solve for x
    x = 15,812,847,925.98/117,620.20
  6. Step 6: Final answer
    x = 134,439.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.