Home / 105,163.58-145,123.77-59,840.54

Finding the Fourth Proportional to 105,163.58, 145,123.77 and 59,840.54

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Solution

The fourth proportional to 105,163.58, 145,123.77 and 59,840.54 is: 82,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.58 : 145,123.77 = 59,840.54 : x
  2. Step 2: Convert to fraction form
    105,163.58/145,123.77 = 59,840.54/x
  3. Step 3: Cross multiply
    105,163.58x = 145,123.77 × 59,840.54
  4. Step 4: Simplify right side
    105,163.58x = 8,684,284,763.64
  5. Step 5: Solve for x
    x = 8,684,284,763.64/105,163.58
  6. Step 6: Final answer
    x = 82,578.82

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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.