Home / 105,292.98-145,304.08-57,546.68

Finding the Fourth Proportional to 105,292.98, 145,304.08 and 57,546.68

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Solution

The fourth proportional to 105,292.98, 145,304.08 and 57,546.68 is: 79,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,292.98 : 145,304.08 = 57,546.68 : x
  2. Step 2: Convert to fraction form
    105,292.98/145,304.08 = 57,546.68/x
  3. Step 3: Cross multiply
    105,292.98x = 145,304.08 × 57,546.68
  4. Step 4: Simplify right side
    105,292.98x = 8,361,767,394.45
  5. Step 5: Solve for x
    x = 8,361,767,394.45/105,292.98
  6. Step 6: Final answer
    x = 79,414.29

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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.