Home / 105,512.10-145,566.94-69,233.56

Finding the Fourth Proportional to 105,512.10, 145,566.94 and 69,233.56

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Solution

The fourth proportional to 105,512.10, 145,566.94 and 69,233.56 is: 95,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,512.10 : 145,566.94 = 69,233.56 : x
  2. Step 2: Convert to fraction form
    105,512.10/145,566.94 = 69,233.56/x
  3. Step 3: Cross multiply
    105,512.10x = 145,566.94 × 69,233.56
  4. Step 4: Simplify right side
    105,512.10x = 10,078,117,474.51
  5. Step 5: Solve for x
    x = 10,078,117,474.51/105,512.10
  6. Step 6: Final answer
    x = 95,516.22

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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.