Home / 136,028.93-187,719.21-74,776.55

Finding the Fourth Proportional to 136,028.93, 187,719.21 and 74,776.55

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Solution

The fourth proportional to 136,028.93, 187,719.21 and 74,776.55 is: 103,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,028.93 : 187,719.21 = 74,776.55 : x
  2. Step 2: Convert to fraction form
    136,028.93/187,719.21 = 74,776.55/x
  3. Step 3: Cross multiply
    136,028.93x = 187,719.21 × 74,776.55
  4. Step 4: Simplify right side
    136,028.93x = 14,036,993,953.93
  5. Step 5: Solve for x
    x = 14,036,993,953.93/136,028.93
  6. Step 6: Final answer
    x = 103,191.24

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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.