Home / 127,220.22-175,577.83-72,777.39

Finding the Fourth Proportional to 127,220.22, 175,577.83 and 72,777.39

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Solution

The fourth proportional to 127,220.22, 175,577.83 and 72,777.39 is: 100,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,220.22 : 175,577.83 = 72,777.39 : x
  2. Step 2: Convert to fraction form
    127,220.22/175,577.83 = 72,777.39/x
  3. Step 3: Cross multiply
    127,220.22x = 175,577.83 × 72,777.39
  4. Step 4: Simplify right side
    127,220.22x = 12,778,095,368.90
  5. Step 5: Solve for x
    x = 12,778,095,368.90/127,220.22
  6. Step 6: Final answer
    x = 100,440.76

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1.5x scale

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.