Home / 127,740.60-191,639.70-38,998.20

Finding the Fourth Proportional to 127,740.60, 191,639.70 and 38,998.20

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Solution

The fourth proportional to 127,740.60, 191,639.70 and 38,998.20 is: 58,506.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,740.60 : 191,639.70 = 38,998.20 : x
  2. Step 2: Convert to fraction form
    127,740.60/191,639.70 = 38,998.20/x
  3. Step 3: Cross multiply
    127,740.60x = 191,639.70 × 38,998.20
  4. Step 4: Simplify right side
    127,740.60x = 7,473,603,348.54
  5. Step 5: Solve for x
    x = 7,473,603,348.54/127,740.60
  6. Step 6: Final answer
    x = 58,506.09

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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.