Home / 250,105.12-345,145.04-136,928.16

Finding the Fourth Proportional to 250,105.12, 345,145.04 and 136,928.16

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Solution

The fourth proportional to 250,105.12, 345,145.04 and 136,928.16 is: 188,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,105.12 : 345,145.04 = 136,928.16 : x
  2. Step 2: Convert to fraction form
    250,105.12/345,145.04 = 136,928.16/x
  3. Step 3: Cross multiply
    250,105.12x = 345,145.04 × 136,928.16
  4. Step 4: Simplify right side
    250,105.12x = 47,260,075,260.33
  5. Step 5: Solve for x
    x = 47,260,075,260.33/250,105.12
  6. Step 6: Final answer
    x = 188,960.85

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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.