Home / 99,856.08-137,801.06-59,571.54

Finding the Fourth Proportional to 99,856.08, 137,801.06 and 59,571.54

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Solution

The fourth proportional to 99,856.08, 137,801.06 and 59,571.54 is: 82,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.08 : 137,801.06 = 59,571.54 : x
  2. Step 2: Convert to fraction form
    99,856.08/137,801.06 = 59,571.54/x
  3. Step 3: Cross multiply
    99,856.08x = 137,801.06 × 59,571.54
  4. Step 4: Simplify right side
    99,856.08x = 8,209,021,357.83
  5. Step 5: Solve for x
    x = 8,209,021,357.83/99,856.08
  6. Step 6: Final answer
    x = 82,208.53

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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.