Home / 99,666.89-137,551.97-56,652.84

Finding the Fourth Proportional to 99,666.89, 137,551.97 and 56,652.84

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Solution

The fourth proportional to 99,666.89, 137,551.97 and 56,652.84 is: 78,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.89 : 137,551.97 = 56,652.84 : x
  2. Step 2: Convert to fraction form
    99,666.89/137,551.97 = 56,652.84/x
  3. Step 3: Cross multiply
    99,666.89x = 137,551.97 × 56,652.84
  4. Step 4: Simplify right side
    99,666.89x = 7,792,709,464.83
  5. Step 5: Solve for x
    x = 7,792,709,464.83/99,666.89
  6. Step 6: Final answer
    x = 78,187.55

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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.