Home / 99,684.39-137,560.60-56,669.52

Finding the Fourth Proportional to 99,684.39, 137,560.60 and 56,669.52

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Solution

The fourth proportional to 99,684.39, 137,560.60 and 56,669.52 is: 78,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.39 : 137,560.60 = 56,669.52 : x
  2. Step 2: Convert to fraction form
    99,684.39/137,560.60 = 56,669.52/x
  3. Step 3: Cross multiply
    99,684.39x = 137,560.60 × 56,669.52
  4. Step 4: Simplify right side
    99,684.39x = 7,795,493,172.91
  5. Step 5: Solve for x
    x = 7,795,493,172.91/99,684.39
  6. Step 6: Final answer
    x = 78,201.74

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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.