Home / 99,276.68-136,998.06-56,839.16

Finding the Fourth Proportional to 99,276.68, 136,998.06 and 56,839.16

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Solution

The fourth proportional to 99,276.68, 136,998.06 and 56,839.16 is: 78,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,276.68 : 136,998.06 = 56,839.16 : x
  2. Step 2: Convert to fraction form
    99,276.68/136,998.06 = 56,839.16/x
  3. Step 3: Cross multiply
    99,276.68x = 136,998.06 × 56,839.16
  4. Step 4: Simplify right side
    99,276.68x = 7,786,854,652.03
  5. Step 5: Solve for x
    x = 7,786,854,652.03/99,276.68
  6. Step 6: Final answer
    x = 78,435.89

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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.