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Finding the Fourth Proportional to 135,616.95, 187,162.48 and 75,206.54

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Solution

The fourth proportional to 135,616.95, 187,162.48 and 75,206.54 is: 103,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,616.95 : 187,162.48 = 75,206.54 : x
  2. Step 2: Convert to fraction form
    135,616.95/187,162.48 = 75,206.54/x
  3. Step 3: Cross multiply
    135,616.95x = 187,162.48 × 75,206.54
  4. Step 4: Simplify right side
    135,616.95x = 14,075,843,100.53
  5. Step 5: Solve for x
    x = 14,075,843,100.53/135,616.95
  6. Step 6: Final answer
    x = 103,791.18

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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.