Home / 137,787.16-190,131.57-77,364.44

Finding the Fourth Proportional to 137,787.16, 190,131.57 and 77,364.44

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Solution

The fourth proportional to 137,787.16, 190,131.57 and 77,364.44 is: 106,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,787.16 : 190,131.57 = 77,364.44 : x
  2. Step 2: Convert to fraction form
    137,787.16/190,131.57 = 77,364.44/x
  3. Step 3: Cross multiply
    137,787.16x = 190,131.57 × 77,364.44
  4. Step 4: Simplify right side
    137,787.16x = 14,709,422,439.37
  5. Step 5: Solve for x
    x = 14,709,422,439.37/137,787.16
  6. Step 6: Final answer
    x = 106,754.67

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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.