Home / 126,830.78-190,156.04-63,605.28

Finding the Fourth Proportional to 126,830.78, 190,156.04 and 63,605.28

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Solution

The fourth proportional to 126,830.78, 190,156.04 and 63,605.28 is: 95,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,830.78 : 190,156.04 = 63,605.28 : x
  2. Step 2: Convert to fraction form
    126,830.78/190,156.04 = 63,605.28/x
  3. Step 3: Cross multiply
    126,830.78x = 190,156.04 × 63,605.28
  4. Step 4: Simplify right side
    126,830.78x = 12,094,928,801.47
  5. Step 5: Solve for x
    x = 12,094,928,801.47/126,830.78
  6. Step 6: Final answer
    x = 95,362.73

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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.