Home / 105,511.10-145,565.56-69,232.56

Finding the Fourth Proportional to 105,511.10, 145,565.56 and 69,232.56

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Solution

The fourth proportional to 105,511.10, 145,565.56 and 69,232.56 is: 95,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,511.10 : 145,565.56 = 69,232.56 : x
  2. Step 2: Convert to fraction form
    105,511.10/145,565.56 = 69,232.56/x
  3. Step 3: Cross multiply
    105,511.10x = 145,565.56 × 69,232.56
  4. Step 4: Simplify right side
    105,511.10x = 10,077,876,366.63
  5. Step 5: Solve for x
    x = 10,077,876,366.63/105,511.10
  6. Step 6: Final answer
    x = 95,514.85

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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.