Home / 147,715.28-203,868.60-84,068.72

Finding the Fourth Proportional to 147,715.28, 203,868.60 and 84,068.72

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Solution

The fourth proportional to 147,715.28, 203,868.60 and 84,068.72 is: 116,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,715.28 : 203,868.60 = 84,068.72 : x
  2. Step 2: Convert to fraction form
    147,715.28/203,868.60 = 84,068.72/x
  3. Step 3: Cross multiply
    147,715.28x = 203,868.60 × 84,068.72
  4. Step 4: Simplify right side
    147,715.28x = 17,138,972,250.19
  5. Step 5: Solve for x
    x = 17,138,972,250.19/147,715.28
  6. Step 6: Final answer
    x = 116,027.08

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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.