Home / 156,329.60-215,799.36-111,678.08

Finding the Fourth Proportional to 156,329.60, 215,799.36 and 111,678.08

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Solution

The fourth proportional to 156,329.60, 215,799.36 and 111,678.08 is: 154,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,329.60 : 215,799.36 = 111,678.08 : x
  2. Step 2: Convert to fraction form
    156,329.60/215,799.36 = 111,678.08/x
  3. Step 3: Cross multiply
    156,329.60x = 215,799.36 × 111,678.08
  4. Step 4: Simplify right side
    156,329.60x = 24,100,058,190.03
  5. Step 5: Solve for x
    x = 24,100,058,190.03/156,329.60
  6. Step 6: Final answer
    x = 154,161.84

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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.