Home / 105,261.04-145,262.19-57,517.48

Finding the Fourth Proportional to 105,261.04, 145,262.19 and 57,517.48

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Solution

The fourth proportional to 105,261.04, 145,262.19 and 57,517.48 is: 79,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,261.04 : 145,262.19 = 57,517.48 : x
  2. Step 2: Convert to fraction form
    105,261.04/145,262.19 = 57,517.48/x
  3. Step 3: Cross multiply
    105,261.04x = 145,262.19 × 57,517.48
  4. Step 4: Simplify right side
    105,261.04x = 8,355,115,108.08
  5. Step 5: Solve for x
    x = 8,355,115,108.08/105,261.04
  6. Step 6: Final answer
    x = 79,375.19

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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.