Home / 131,313.60-197,200.80-127,166.40

Finding the Fourth Proportional to 131,313.60, 197,200.80 and 127,166.40

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Solution

The fourth proportional to 131,313.60, 197,200.80 and 127,166.40 is: 190,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,313.60 : 197,200.80 = 127,166.40 : x
  2. Step 2: Convert to fraction form
    131,313.60/197,200.80 = 127,166.40/x
  3. Step 3: Cross multiply
    131,313.60x = 197,200.80 × 127,166.40
  4. Step 4: Simplify right side
    131,313.60x = 25,077,315,813.12
  5. Step 5: Solve for x
    x = 25,077,315,813.12/131,313.60
  6. Step 6: Final answer
    x = 190,972.72

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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.