Home / 131,429.20-197,172.60-42,667.60

Finding the Fourth Proportional to 131,429.20, 197,172.60 and 42,667.60

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Solution

The fourth proportional to 131,429.20, 197,172.60 and 42,667.60 is: 64,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.20 : 197,172.60 = 42,667.60 : x
  2. Step 2: Convert to fraction form
    131,429.20/197,172.60 = 42,667.60/x
  3. Step 3: Cross multiply
    131,429.20x = 197,172.60 × 42,667.60
  4. Step 4: Simplify right side
    131,429.20x = 8,412,881,627.76
  5. Step 5: Solve for x
    x = 8,412,881,627.76/131,429.20
  6. Step 6: Final answer
    x = 64,010.75

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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.