Home / 127,905.80-191,913.90-68,672.24

Finding the Fourth Proportional to 127,905.80, 191,913.90 and 68,672.24

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Solution

The fourth proportional to 127,905.80, 191,913.90 and 68,672.24 is: 103,038.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,905.80 : 191,913.90 = 68,672.24 : x
  2. Step 2: Convert to fraction form
    127,905.80/191,913.90 = 68,672.24/x
  3. Step 3: Cross multiply
    127,905.80x = 191,913.90 × 68,672.24
  4. Step 4: Simplify right side
    127,905.80x = 13,179,157,400.14
  5. Step 5: Solve for x
    x = 13,179,157,400.14/127,905.80
  6. Step 6: Final answer
    x = 103,038.00

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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.