Home / 99,115.84-136,765.42-56,666.17

Finding the Fourth Proportional to 99,115.84, 136,765.42 and 56,666.17

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Solution

The fourth proportional to 99,115.84, 136,765.42 and 56,666.17 is: 78,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,115.84 : 136,765.42 = 56,666.17 : x
  2. Step 2: Convert to fraction form
    99,115.84/136,765.42 = 56,666.17/x
  3. Step 3: Cross multiply
    99,115.84x = 136,765.42 × 56,666.17
  4. Step 4: Simplify right side
    99,115.84x = 7,749,972,539.84
  5. Step 5: Solve for x
    x = 7,749,972,539.84/99,115.84
  6. Step 6: Final answer
    x = 78,191.06

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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.