Home / 175,667.20-263,500.80-128,435.20

Finding the Fourth Proportional to 175,667.20, 263,500.80 and 128,435.20

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Solution

The fourth proportional to 175,667.20, 263,500.80 and 128,435.20 is: 192,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,667.20 : 263,500.80 = 128,435.20 : x
  2. Step 2: Convert to fraction form
    175,667.20/263,500.80 = 128,435.20/x
  3. Step 3: Cross multiply
    175,667.20x = 263,500.80 × 128,435.20
  4. Step 4: Simplify right side
    175,667.20x = 33,842,777,948.16
  5. Step 5: Solve for x
    x = 33,842,777,948.16/175,667.20
  6. Step 6: Final answer
    x = 192,652.80

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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.