Home / 127,411.60-191,140.36-52,490.78

Finding the Fourth Proportional to 127,411.60, 191,140.36 and 52,490.78

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Solution

The fourth proportional to 127,411.60, 191,140.36 and 52,490.78 is: 78,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,411.60 : 191,140.36 = 52,490.78 : x
  2. Step 2: Convert to fraction form
    127,411.60/191,140.36 = 52,490.78/x
  3. Step 3: Cross multiply
    127,411.60x = 191,140.36 × 52,490.78
  4. Step 4: Simplify right side
    127,411.60x = 10,033,106,585.88
  5. Step 5: Solve for x
    x = 10,033,106,585.88/127,411.60
  6. Step 6: Final answer
    x = 78,745.63

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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.