Home / 136,078.80-204,069.60-47,335.20

Finding the Fourth Proportional to 136,078.80, 204,069.60 and 47,335.20

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Solution

The fourth proportional to 136,078.80, 204,069.60 and 47,335.20 is: 70,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,078.80 : 204,069.60 = 47,335.20 : x
  2. Step 2: Convert to fraction form
    136,078.80/204,069.60 = 47,335.20/x
  3. Step 3: Cross multiply
    136,078.80x = 204,069.60 × 47,335.20
  4. Step 4: Simplify right side
    136,078.80x = 9,659,675,329.92
  5. Step 5: Solve for x
    x = 9,659,675,329.92/136,078.80
  6. Step 6: Final answer
    x = 70,985.89

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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.