Home / 164,638.80-227,200.95-89,187.30

Finding the Fourth Proportional to 164,638.80, 227,200.95 and 89,187.30

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Solution

The fourth proportional to 164,638.80, 227,200.95 and 89,187.30 is: 123,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,638.80 : 227,200.95 = 89,187.30 : x
  2. Step 2: Convert to fraction form
    164,638.80/227,200.95 = 89,187.30/x
  3. Step 3: Cross multiply
    164,638.80x = 227,200.95 × 89,187.30
  4. Step 4: Simplify right side
    164,638.80x = 20,263,439,287.94
  5. Step 5: Solve for x
    x = 20,263,439,287.94/164,638.80
  6. Step 6: Final answer
    x = 123,078.15

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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.