Home / 147,784.80-203,944.24-84,126.72

Finding the Fourth Proportional to 147,784.80, 203,944.24 and 84,126.72

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Solution

The fourth proportional to 147,784.80, 203,944.24 and 84,126.72 is: 116,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,784.80 : 203,944.24 = 84,126.72 : x
  2. Step 2: Convert to fraction form
    147,784.80/203,944.24 = 84,126.72/x
  3. Step 3: Cross multiply
    147,784.80x = 203,944.24 × 84,126.72
  4. Step 4: Simplify right side
    147,784.80x = 17,157,159,974.09
  5. Step 5: Solve for x
    x = 17,157,159,974.09/147,784.80
  6. Step 6: Final answer
    x = 116,095.57

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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.