Home / 127,490.94-191,260.07-42,107.72

Finding the Fourth Proportional to 127,490.94, 191,260.07 and 42,107.72

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Solution

The fourth proportional to 127,490.94, 191,260.07 and 42,107.72 is: 63,169.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,490.94 : 191,260.07 = 42,107.72 : x
  2. Step 2: Convert to fraction form
    127,490.94/191,260.07 = 42,107.72/x
  3. Step 3: Cross multiply
    127,490.94x = 191,260.07 × 42,107.72
  4. Step 4: Simplify right side
    127,490.94x = 8,053,524,307.90
  5. Step 5: Solve for x
    x = 8,053,524,307.90/127,490.94
  6. Step 6: Final answer
    x = 63,169.39

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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.