Home / 99,255.29-136,979.24-56,234.43

Finding the Fourth Proportional to 99,255.29, 136,979.24 and 56,234.43

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Solution

The fourth proportional to 99,255.29, 136,979.24 and 56,234.43 is: 77,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,255.29 : 136,979.24 = 56,234.43 : x
  2. Step 2: Convert to fraction form
    99,255.29/136,979.24 = 56,234.43/x
  3. Step 3: Cross multiply
    99,255.29x = 136,979.24 × 56,234.43
  4. Step 4: Simplify right side
    99,255.29x = 7,702,949,202.06
  5. Step 5: Solve for x
    x = 7,702,949,202.06/99,255.29
  6. Step 6: Final answer
    x = 77,607.45

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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.