Home / 127,989.90-191,960.55-39,246.30

Finding the Fourth Proportional to 127,989.90, 191,960.55 and 39,246.30

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Solution

The fourth proportional to 127,989.90, 191,960.55 and 39,246.30 is: 58,862.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,989.90 : 191,960.55 = 39,246.30 : x
  2. Step 2: Convert to fraction form
    127,989.90/191,960.55 = 39,246.30/x
  3. Step 3: Cross multiply
    127,989.90x = 191,960.55 × 39,246.30
  4. Step 4: Simplify right side
    127,989.90x = 7,533,741,333.47
  5. Step 5: Solve for x
    x = 7,533,741,333.47/127,989.90
  6. Step 6: Final answer
    x = 58,862.00

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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.