Home / 99,254.31-136,977.08-56,811.87

Finding the Fourth Proportional to 99,254.31, 136,977.08 and 56,811.87

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Solution

The fourth proportional to 99,254.31, 136,977.08 and 56,811.87 is: 78,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,254.31 : 136,977.08 = 56,811.87 : x
  2. Step 2: Convert to fraction form
    99,254.31/136,977.08 = 56,811.87/x
  3. Step 3: Cross multiply
    99,254.31x = 136,977.08 × 56,811.87
  4. Step 4: Simplify right side
    99,254.31x = 7,781,923,777.88
  5. Step 5: Solve for x
    x = 7,781,923,777.88/99,254.31
  6. Step 6: Final answer
    x = 78,403.89

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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.