Home / 127,624.20-191,436.30-57,640.20

Finding the Fourth Proportional to 127,624.20, 191,436.30 and 57,640.20

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Solution

The fourth proportional to 127,624.20, 191,436.30 and 57,640.20 is: 86,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,624.20 : 191,436.30 = 57,640.20 : x
  2. Step 2: Convert to fraction form
    127,624.20/191,436.30 = 57,640.20/x
  3. Step 3: Cross multiply
    127,624.20x = 191,436.30 × 57,640.20
  4. Step 4: Simplify right side
    127,624.20x = 11,034,426,619.26
  5. Step 5: Solve for x
    x = 11,034,426,619.26/127,624.20
  6. Step 6: Final answer
    x = 86,460.30

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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.