Home / 127,445.88-191,156.46-38,700.15

Finding the Fourth Proportional to 127,445.88, 191,156.46 and 38,700.15

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Solution

The fourth proportional to 127,445.88, 191,156.46 and 38,700.15 is: 58,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,445.88 : 191,156.46 = 38,700.15 : x
  2. Step 2: Convert to fraction form
    127,445.88/191,156.46 = 38,700.15/x
  3. Step 3: Cross multiply
    127,445.88x = 191,156.46 × 38,700.15
  4. Step 4: Simplify right side
    127,445.88x = 7,397,783,675.47
  5. Step 5: Solve for x
    x = 7,397,783,675.47/127,445.88
  6. Step 6: Final answer
    x = 58,046.47

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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.