Home / 147,723.51-203,855.66-90,358.61

Finding the Fourth Proportional to 147,723.51, 203,855.66 and 90,358.61

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Solution

The fourth proportional to 147,723.51, 203,855.66 and 90,358.61 is: 124,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,723.51 : 203,855.66 = 90,358.61 : x
  2. Step 2: Convert to fraction form
    147,723.51/203,855.66 = 90,358.61/x
  3. Step 3: Cross multiply
    147,723.51x = 203,855.66 × 90,358.61
  4. Step 4: Simplify right side
    147,723.51x = 18,420,114,078.23
  5. Step 5: Solve for x
    x = 18,420,114,078.23/147,723.51
  6. Step 6: Final answer
    x = 124,693.18

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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.