Home / 135,928.90-187,583.16-79,329.34

Finding the Fourth Proportional to 135,928.90, 187,583.16 and 79,329.34

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Solution

The fourth proportional to 135,928.90, 187,583.16 and 79,329.34 is: 109,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,928.90 : 187,583.16 = 79,329.34 : x
  2. Step 2: Convert to fraction form
    135,928.90/187,583.16 = 79,329.34/x
  3. Step 3: Cross multiply
    135,928.90x = 187,583.16 × 79,329.34
  4. Step 4: Simplify right side
    135,928.90x = 14,880,848,277.91
  5. Step 5: Solve for x
    x = 14,880,848,277.91/135,928.90
  6. Step 6: Final answer
    x = 109,475.24

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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.