Home / 109,506.84-151,117.90-61,775.56

Finding the Fourth Proportional to 109,506.84, 151,117.90 and 61,775.56

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Solution

The fourth proportional to 109,506.84, 151,117.90 and 61,775.56 is: 85,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,506.84 : 151,117.90 = 61,775.56 : x
  2. Step 2: Convert to fraction form
    109,506.84/151,117.90 = 61,775.56/x
  3. Step 3: Cross multiply
    109,506.84x = 151,117.90 × 61,775.56
  4. Step 4: Simplify right side
    109,506.84x = 9,335,393,280.47
  5. Step 5: Solve for x
    x = 9,335,393,280.47/109,506.84
  6. Step 6: Final answer
    x = 85,249.41

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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.