Home / 127,647.30-191,478.15-38,903.70

Finding the Fourth Proportional to 127,647.30, 191,478.15 and 38,903.70

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Solution

The fourth proportional to 127,647.30, 191,478.15 and 38,903.70 is: 58,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,647.30 : 191,478.15 = 38,903.70 : x
  2. Step 2: Convert to fraction form
    127,647.30/191,478.15 = 38,903.70/x
  3. Step 3: Cross multiply
    127,647.30x = 191,478.15 × 38,903.70
  4. Step 4: Simplify right side
    127,647.30x = 7,449,208,504.16
  5. Step 5: Solve for x
    x = 7,449,208,504.16/127,647.30
  6. Step 6: Final answer
    x = 58,357.74

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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.