Home / 129,498.40-194,657.20-122,125.60

Finding the Fourth Proportional to 129,498.40, 194,657.20 and 122,125.60

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Solution

The fourth proportional to 129,498.40, 194,657.20 and 122,125.60 is: 183,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,498.40 : 194,657.20 = 122,125.60 : x
  2. Step 2: Convert to fraction form
    129,498.40/194,657.20 = 122,125.60/x
  3. Step 3: Cross multiply
    129,498.40x = 194,657.20 × 122,125.60
  4. Step 4: Simplify right side
    129,498.40x = 23,772,627,344.32
  5. Step 5: Solve for x
    x = 23,772,627,344.32/129,498.40
  6. Step 6: Final answer
    x = 183,574.68

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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.