Home / 105,163.08-145,123.08-59,840.04

Finding the Fourth Proportional to 105,163.08, 145,123.08 and 59,840.04

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Solution

The fourth proportional to 105,163.08, 145,123.08 and 59,840.04 is: 82,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.08 : 145,123.08 = 59,840.04 : x
  2. Step 2: Convert to fraction form
    105,163.08/145,123.08 = 59,840.04/x
  3. Step 3: Cross multiply
    105,163.08x = 145,123.08 × 59,840.04
  4. Step 4: Simplify right side
    105,163.08x = 8,684,170,912.12
  5. Step 5: Solve for x
    x = 8,684,170,912.12/105,163.08
  6. Step 6: Final answer
    x = 82,578.13

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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.