Home / 250,149.65-345,203.07-136,972.40

Finding the Fourth Proportional to 250,149.65, 345,203.07 and 136,972.40

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Solution

The fourth proportional to 250,149.65, 345,203.07 and 136,972.40 is: 189,020.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,149.65 : 345,203.07 = 136,972.40 : x
  2. Step 2: Convert to fraction form
    250,149.65/345,203.07 = 136,972.40/x
  3. Step 3: Cross multiply
    250,149.65x = 345,203.07 × 136,972.40
  4. Step 4: Simplify right side
    250,149.65x = 47,283,292,985.27
  5. Step 5: Solve for x
    x = 47,283,292,985.27/250,149.65
  6. Step 6: Final answer
    x = 189,020.02

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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.