Home / 147,733.76-203,888.64-91,143.68

Finding the Fourth Proportional to 147,733.76, 203,888.64 and 91,143.68

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Solution

The fourth proportional to 147,733.76, 203,888.64 and 91,143.68 is: 125,788.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,733.76 : 203,888.64 = 91,143.68 : x
  2. Step 2: Convert to fraction form
    147,733.76/203,888.64 = 91,143.68/x
  3. Step 3: Cross multiply
    147,733.76x = 203,888.64 × 91,143.68
  4. Step 4: Simplify right side
    147,733.76x = 18,583,160,959.80
  5. Step 5: Solve for x
    x = 18,583,160,959.80/147,733.76
  6. Step 6: Final answer
    x = 125,788.18

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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.