Home / 127,179.37-175,521.45-72,736.59

Finding the Fourth Proportional to 127,179.37, 175,521.45 and 72,736.59

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Solution

The fourth proportional to 127,179.37, 175,521.45 and 72,736.59 is: 100,384.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,179.37 : 175,521.45 = 72,736.59 : x
  2. Step 2: Convert to fraction form
    127,179.37/175,521.45 = 72,736.59/x
  3. Step 3: Cross multiply
    127,179.37x = 175,521.45 × 72,736.59
  4. Step 4: Simplify right side
    127,179.37x = 12,766,831,744.86
  5. Step 5: Solve for x
    x = 12,766,831,744.86/127,179.37
  6. Step 6: Final answer
    x = 100,384.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.