Home / 127,863.55-191,788.37-39,117.05

Finding the Fourth Proportional to 127,863.55, 191,788.37 and 39,117.05

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Solution

The fourth proportional to 127,863.55, 191,788.37 and 39,117.05 is: 58,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,863.55 : 191,788.37 = 39,117.05 : x
  2. Step 2: Convert to fraction form
    127,863.55/191,788.37 = 39,117.05/x
  3. Step 3: Cross multiply
    127,863.55x = 191,788.37 × 39,117.05
  4. Step 4: Simplify right side
    127,863.55x = 7,502,195,063.12
  5. Step 5: Solve for x
    x = 7,502,195,063.12/127,863.55
  6. Step 6: Final answer
    x = 58,673.45

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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.