Home / 127,880.40-191,820.60-39,134.10

Finding the Fourth Proportional to 127,880.40, 191,820.60 and 39,134.10

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Solution

The fourth proportional to 127,880.40, 191,820.60 and 39,134.10 is: 58,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,880.40 : 191,820.60 = 39,134.10 : x
  2. Step 2: Convert to fraction form
    127,880.40/191,820.60 = 39,134.10/x
  3. Step 3: Cross multiply
    127,880.40x = 191,820.60 × 39,134.10
  4. Step 4: Simplify right side
    127,880.40x = 7,506,726,542.46
  5. Step 5: Solve for x
    x = 7,506,726,542.46/127,880.40
  6. Step 6: Final answer
    x = 58,701.15

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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.