Home / 102,036.11-140,832.68-56,729.97

Finding the Fourth Proportional to 102,036.11, 140,832.68 and 56,729.97

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Solution

The fourth proportional to 102,036.11, 140,832.68 and 56,729.97 is: 78,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,036.11 : 140,832.68 = 56,729.97 : x
  2. Step 2: Convert to fraction form
    102,036.11/140,832.68 = 56,729.97/x
  3. Step 3: Cross multiply
    102,036.11x = 140,832.68 × 56,729.97
  4. Step 4: Simplify right side
    102,036.11x = 7,989,433,427.77
  5. Step 5: Solve for x
    x = 7,989,433,427.77/102,036.11
  6. Step 6: Final answer
    x = 78,300.06

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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.