Home / 250,065.36-345,090.78-136,895.40

Finding the Fourth Proportional to 250,065.36, 345,090.78 and 136,895.40

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Solution

The fourth proportional to 250,065.36, 345,090.78 and 136,895.40 is: 188,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,065.36 : 345,090.78 = 136,895.40 : x
  2. Step 2: Convert to fraction form
    250,065.36/345,090.78 = 136,895.40/x
  3. Step 3: Cross multiply
    250,065.36x = 345,090.78 × 136,895.40
  4. Step 4: Simplify right side
    250,065.36x = 47,241,340,364.41
  5. Step 5: Solve for x
    x = 47,241,340,364.41/250,065.36
  6. Step 6: Final answer
    x = 188,915.97

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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.