Home / 99,076.96-136,728.52-56,639.44

Finding the Fourth Proportional to 99,076.96, 136,728.52 and 56,639.44

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Solution

The fourth proportional to 99,076.96, 136,728.52 and 56,639.44 is: 78,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,076.96 : 136,728.52 = 56,639.44 : x
  2. Step 2: Convert to fraction form
    99,076.96/136,728.52 = 56,639.44/x
  3. Step 3: Cross multiply
    99,076.96x = 136,728.52 × 56,639.44
  4. Step 4: Simplify right side
    99,076.96x = 7,744,226,804.83
  5. Step 5: Solve for x
    x = 7,744,226,804.83/99,076.96
  6. Step 6: Final answer
    x = 78,163.75

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1.5x scale

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.