Home / 105,163.34-145,142.08-66,882.98

Finding the Fourth Proportional to 105,163.34, 145,142.08 and 66,882.98

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Solution

The fourth proportional to 105,163.34, 145,142.08 and 66,882.98 is: 92,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.34 : 145,142.08 = 66,882.98 : x
  2. Step 2: Convert to fraction form
    105,163.34/145,142.08 = 66,882.98/x
  3. Step 3: Cross multiply
    105,163.34x = 145,142.08 × 66,882.98
  4. Step 4: Simplify right side
    105,163.34x = 9,707,534,833.80
  5. Step 5: Solve for x
    x = 9,707,534,833.80/105,163.34
  6. Step 6: Final answer
    x = 92,309.11

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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.