Home / 102,583.97-153,560.64-87,450.35

Finding the Fourth Proportional to 102,583.97, 153,560.64 and 87,450.35

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Solution

The fourth proportional to 102,583.97, 153,560.64 and 87,450.35 is: 130,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,583.97 : 153,560.64 = 87,450.35 : x
  2. Step 2: Convert to fraction form
    102,583.97/153,560.64 = 87,450.35/x
  3. Step 3: Cross multiply
    102,583.97x = 153,560.64 × 87,450.35
  4. Step 4: Simplify right side
    102,583.97x = 13,428,931,400.28
  5. Step 5: Solve for x
    x = 13,428,931,400.28/102,583.97
  6. Step 6: Final answer
    x = 130,906.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.