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Finding the Fourth Proportional to 141,808.60, 212,712.90 and 115,564.60

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Solution

The fourth proportional to 141,808.60, 212,712.90 and 115,564.60 is: 173,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.60 : 212,712.90 = 115,564.60 : x
  2. Step 2: Convert to fraction form
    141,808.60/212,712.90 = 115,564.60/x
  3. Step 3: Cross multiply
    141,808.60x = 212,712.90 × 115,564.60
  4. Step 4: Simplify right side
    141,808.60x = 24,582,081,203.34
  5. Step 5: Solve for x
    x = 24,582,081,203.34/141,808.60
  6. Step 6: Final answer
    x = 173,346.90

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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.