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Finding the Fourth Proportional to 105,257.88, 145,352.88 and 67,597.74

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Solution

The fourth proportional to 105,257.88, 145,352.88 and 67,597.74 is: 93,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,257.88 : 145,352.88 = 67,597.74 : x
  2. Step 2: Convert to fraction form
    105,257.88/145,352.88 = 67,597.74/x
  3. Step 3: Cross multiply
    105,257.88x = 145,352.88 × 67,597.74
  4. Step 4: Simplify right side
    105,257.88x = 9,825,526,190.49
  5. Step 5: Solve for x
    x = 9,825,526,190.49/105,257.88
  6. Step 6: Final answer
    x = 93,347.18

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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.