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Finding the Fourth Proportional to 155,252.70, 214,245.81 and 97,880.40

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Solution

The fourth proportional to 155,252.70, 214,245.81 and 97,880.40 is: 135,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,252.70 : 214,245.81 = 97,880.40 : x
  2. Step 2: Convert to fraction form
    155,252.70/214,245.81 = 97,880.40/x
  3. Step 3: Cross multiply
    155,252.70x = 214,245.81 × 97,880.40
  4. Step 4: Simplify right side
    155,252.70x = 20,970,465,581.12
  5. Step 5: Solve for x
    x = 20,970,465,581.12/155,252.70
  6. Step 6: Final answer
    x = 135,073.11

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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.