Home / 147,778.72-203,935.98-84,120.64

Finding the Fourth Proportional to 147,778.72, 203,935.98 and 84,120.64

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Solution

The fourth proportional to 147,778.72, 203,935.98 and 84,120.64 is: 116,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,778.72 : 203,935.98 = 84,120.64 : x
  2. Step 2: Convert to fraction form
    147,778.72/203,935.98 = 84,120.64/x
  3. Step 3: Cross multiply
    147,778.72x = 203,935.98 × 84,120.64
  4. Step 4: Simplify right side
    147,778.72x = 17,155,225,156.63
  5. Step 5: Solve for x
    x = 17,155,225,156.63/147,778.72
  6. Step 6: Final answer
    x = 116,087.25

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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.