Home / 156,097.49-215,420.70-88,116.89

Finding the Fourth Proportional to 156,097.49, 215,420.70 and 88,116.89

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Solution

The fourth proportional to 156,097.49, 215,420.70 and 88,116.89 is: 121,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,097.49 : 215,420.70 = 88,116.89 : x
  2. Step 2: Convert to fraction form
    156,097.49/215,420.70 = 88,116.89/x
  3. Step 3: Cross multiply
    156,097.49x = 215,420.70 × 88,116.89
  4. Step 4: Simplify right side
    156,097.49x = 18,982,201,048.52
  5. Step 5: Solve for x
    x = 18,982,201,048.52/156,097.49
  6. Step 6: Final answer
    x = 121,604.78

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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.