Home / 130,863.60-196,295.40-121,240.80

Finding the Fourth Proportional to 130,863.60, 196,295.40 and 121,240.80

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Solution

The fourth proportional to 130,863.60, 196,295.40 and 121,240.80 is: 181,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,863.60 : 196,295.40 = 121,240.80 : x
  2. Step 2: Convert to fraction form
    130,863.60/196,295.40 = 121,240.80/x
  3. Step 3: Cross multiply
    130,863.60x = 196,295.40 × 121,240.80
  4. Step 4: Simplify right side
    130,863.60x = 23,799,011,332.32
  5. Step 5: Solve for x
    x = 23,799,011,332.32/130,863.60
  6. Step 6: Final answer
    x = 181,861.20

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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.