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Finding the Fourth Proportional to 135,943, 187,594.58 and 75,517.48

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Solution

The fourth proportional to 135,943, 187,594.58 and 75,517.48 is: 104,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,943 : 187,594.58 = 75,517.48 : x
  2. Step 2: Convert to fraction form
    135,943/187,594.58 = 75,517.48/x
  3. Step 3: Cross multiply
    135,943x = 187,594.58 × 75,517.48
  4. Step 4: Simplify right side
    135,943x = 14,166,669,943.26
  5. Step 5: Solve for x
    x = 14,166,669,943.26/135,943
  6. Step 6: Final answer
    x = 104,210.37

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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.