Home / 99,135.24-136,814.82-56,701.94

Finding the Fourth Proportional to 99,135.24, 136,814.82 and 56,701.94

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Solution

The fourth proportional to 99,135.24, 136,814.82 and 56,701.94 is: 78,253.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,135.24 : 136,814.82 = 56,701.94 : x
  2. Step 2: Convert to fraction form
    99,135.24/136,814.82 = 56,701.94/x
  3. Step 3: Cross multiply
    99,135.24x = 136,814.82 × 56,701.94
  4. Step 4: Simplify right side
    99,135.24x = 7,757,665,714.75
  5. Step 5: Solve for x
    x = 7,757,665,714.75/99,135.24
  6. Step 6: Final answer
    x = 78,253.36

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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.