Home / 99,108.85-136,768.26-56,087.54

Finding the Fourth Proportional to 99,108.85, 136,768.26 and 56,087.54

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Solution

The fourth proportional to 99,108.85, 136,768.26 and 56,087.54 is: 77,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.85 : 136,768.26 = 56,087.54 : x
  2. Step 2: Convert to fraction form
    99,108.85/136,768.26 = 56,087.54/x
  3. Step 3: Cross multiply
    99,108.85x = 136,768.26 × 56,087.54
  4. Step 4: Simplify right side
    99,108.85x = 7,670,994,569.64
  5. Step 5: Solve for x
    x = 7,670,994,569.64/99,108.85
  6. Step 6: Final answer
    x = 77,399.70

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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.