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Finding the Fourth Proportional to 105,260.88, 145,357.02 and 67,600.74

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Solution

The fourth proportional to 105,260.88, 145,357.02 and 67,600.74 is: 93,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,260.88 : 145,357.02 = 67,600.74 : x
  2. Step 2: Convert to fraction form
    105,260.88/145,357.02 = 67,600.74/x
  3. Step 3: Cross multiply
    105,260.88x = 145,357.02 × 67,600.74
  4. Step 4: Simplify right side
    105,260.88x = 9,826,242,116.19
  5. Step 5: Solve for x
    x = 9,826,242,116.19/105,260.88
  6. Step 6: Final answer
    x = 93,351.32

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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.