Home / 123,340.20-185,010.30-89,903.40

Finding the Fourth Proportional to 123,340.20, 185,010.30 and 89,903.40

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Solution

The fourth proportional to 123,340.20, 185,010.30 and 89,903.40 is: 134,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.20 : 185,010.30 = 89,903.40 : x
  2. Step 2: Convert to fraction form
    123,340.20/185,010.30 = 89,903.40/x
  3. Step 3: Cross multiply
    123,340.20x = 185,010.30 × 89,903.40
  4. Step 4: Simplify right side
    123,340.20x = 16,633,055,005.02
  5. Step 5: Solve for x
    x = 16,633,055,005.02/123,340.20
  6. Step 6: Final answer
    x = 134,855.10

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1.5x scale

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.