Home / 127,665.40-191,498.10-113,887.30

Finding the Fourth Proportional to 127,665.40, 191,498.10 and 113,887.30

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Solution

The fourth proportional to 127,665.40, 191,498.10 and 113,887.30 is: 170,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,665.40 : 191,498.10 = 113,887.30 : x
  2. Step 2: Convert to fraction form
    127,665.40/191,498.10 = 113,887.30/x
  3. Step 3: Cross multiply
    127,665.40x = 191,498.10 × 113,887.30
  4. Step 4: Simplify right side
    127,665.40x = 21,809,201,564.13
  5. Step 5: Solve for x
    x = 21,809,201,564.13/127,665.40
  6. Step 6: Final answer
    x = 170,830.95

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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.