Home / 105,446.28-145,511.22-64,597.92

Finding the Fourth Proportional to 105,446.28, 145,511.22 and 64,597.92

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Solution

The fourth proportional to 105,446.28, 145,511.22 and 64,597.92 is: 89,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,446.28 : 145,511.22 = 64,597.92 : x
  2. Step 2: Convert to fraction form
    105,446.28/145,511.22 = 64,597.92/x
  3. Step 3: Cross multiply
    105,446.28x = 145,511.22 × 64,597.92
  4. Step 4: Simplify right side
    105,446.28x = 9,399,722,148.66
  5. Step 5: Solve for x
    x = 9,399,722,148.66/105,446.28
  6. Step 6: Final answer
    x = 89,142.28

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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.