Home / 127,331.88-191,047-38,586.12

Finding the Fourth Proportional to 127,331.88, 191,047 and 38,586.12

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Solution

The fourth proportional to 127,331.88, 191,047 and 38,586.12 is: 57,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,331.88 : 191,047 = 38,586.12 : x
  2. Step 2: Convert to fraction form
    127,331.88/191,047 = 38,586.12/x
  3. Step 3: Cross multiply
    127,331.88x = 191,047 × 38,586.12
  4. Step 4: Simplify right side
    127,331.88x = 7,371,762,467.64
  5. Step 5: Solve for x
    x = 7,371,762,467.64/127,331.88
  6. Step 6: Final answer
    x = 57,894.08

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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.