Home / 136,077.42-187,787.88-74,824.68

Finding the Fourth Proportional to 136,077.42, 187,787.88 and 74,824.68

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Solution

The fourth proportional to 136,077.42, 187,787.88 and 74,824.68 is: 103,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,077.42 : 187,787.88 = 74,824.68 : x
  2. Step 2: Convert to fraction form
    136,077.42/187,787.88 = 74,824.68/x
  3. Step 3: Cross multiply
    136,077.42x = 187,787.88 × 74,824.68
  4. Step 4: Simplify right side
    136,077.42x = 14,051,168,028.88
  5. Step 5: Solve for x
    x = 14,051,168,028.88/136,077.42
  6. Step 6: Final answer
    x = 103,258.63

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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.