Home / 156,504.40-234,355.80-86,305.84

Finding the Fourth Proportional to 156,504.40, 234,355.80 and 86,305.84

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Solution

The fourth proportional to 156,504.40, 234,355.80 and 86,305.84 is: 129,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,504.40 : 234,355.80 = 86,305.84 : x
  2. Step 2: Convert to fraction form
    156,504.40/234,355.80 = 86,305.84/x
  3. Step 3: Cross multiply
    156,504.40x = 234,355.80 × 86,305.84
  4. Step 4: Simplify right side
    156,504.40x = 20,226,274,177.87
  5. Step 5: Solve for x
    x = 20,226,274,177.87/156,504.40
  6. Step 6: Final answer
    x = 129,237.74

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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.