Home / 131,639.20-197,329.20-65,089.60

Finding the Fourth Proportional to 131,639.20, 197,329.20 and 65,089.60

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Solution

The fourth proportional to 131,639.20, 197,329.20 and 65,089.60 is: 97,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,639.20 : 197,329.20 = 65,089.60 : x
  2. Step 2: Convert to fraction form
    131,639.20/197,329.20 = 65,089.60/x
  3. Step 3: Cross multiply
    131,639.20x = 197,329.20 × 65,089.60
  4. Step 4: Simplify right side
    131,639.20x = 12,844,078,696.32
  5. Step 5: Solve for x
    x = 12,844,078,696.32/131,639.20
  6. Step 6: Final answer
    x = 97,570.32

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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.