Home / 127,749.60-191,653.20-39,007.20

Finding the Fourth Proportional to 127,749.60, 191,653.20 and 39,007.20

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Solution

The fourth proportional to 127,749.60, 191,653.20 and 39,007.20 is: 58,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,749.60 : 191,653.20 = 39,007.20 : x
  2. Step 2: Convert to fraction form
    127,749.60/191,653.20 = 39,007.20/x
  3. Step 3: Cross multiply
    127,749.60x = 191,653.20 × 39,007.20
  4. Step 4: Simplify right side
    127,749.60x = 7,475,854,703.04
  5. Step 5: Solve for x
    x = 7,475,854,703.04/127,749.60
  6. Step 6: Final answer
    x = 58,519.59

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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.