Home / 127,646.78-191,498.63-38,907.21

Finding the Fourth Proportional to 127,646.78, 191,498.63 and 38,907.21

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Solution

The fourth proportional to 127,646.78, 191,498.63 and 38,907.21 is: 58,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,646.78 : 191,498.63 = 38,907.21 : x
  2. Step 2: Convert to fraction form
    127,646.78/191,498.63 = 38,907.21/x
  3. Step 3: Cross multiply
    127,646.78x = 191,498.63 × 38,907.21
  4. Step 4: Simplify right side
    127,646.78x = 7,450,677,217.59
  5. Step 5: Solve for x
    x = 7,450,677,217.59/127,646.78
  6. Step 6: Final answer
    x = 58,369.49

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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.