Home / 136,012.14-187,684.80-75,578.95

Finding the Fourth Proportional to 136,012.14, 187,684.80 and 75,578.95

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Solution

The fourth proportional to 136,012.14, 187,684.80 and 75,578.95 is: 104,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,012.14 : 187,684.80 = 75,578.95 : x
  2. Step 2: Convert to fraction form
    136,012.14/187,684.80 = 75,578.95/x
  3. Step 3: Cross multiply
    136,012.14x = 187,684.80 × 75,578.95
  4. Step 4: Simplify right side
    136,012.14x = 14,185,020,114.96
  5. Step 5: Solve for x
    x = 14,185,020,114.96/136,012.14
  6. Step 6: Final answer
    x = 104,292.31

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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.