Home / 105,235.26-145,272.46-67,047.18

Finding the Fourth Proportional to 105,235.26, 145,272.46 and 67,047.18

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Solution

The fourth proportional to 105,235.26, 145,272.46 and 67,047.18 is: 92,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,235.26 : 145,272.46 = 67,047.18 : x
  2. Step 2: Convert to fraction form
    105,235.26/145,272.46 = 67,047.18/x
  3. Step 3: Cross multiply
    105,235.26x = 145,272.46 × 67,047.18
  4. Step 4: Simplify right side
    105,235.26x = 9,740,108,774.66
  5. Step 5: Solve for x
    x = 9,740,108,774.66/105,235.26
  6. Step 6: Final answer
    x = 92,555.56

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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.