Home / 250,254.06-345,355.65-137,076.90

Finding the Fourth Proportional to 250,254.06, 345,355.65 and 137,076.90

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Solution

The fourth proportional to 250,254.06, 345,355.65 and 137,076.90 is: 189,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,254.06 : 345,355.65 = 137,076.90 : x
  2. Step 2: Convert to fraction form
    250,254.06/345,355.65 = 137,076.90/x
  3. Step 3: Cross multiply
    250,254.06x = 345,355.65 × 137,076.90
  4. Step 4: Simplify right side
    250,254.06x = 47,340,281,899.49
  5. Step 5: Solve for x
    x = 47,340,281,899.49/250,254.06
  6. Step 6: Final answer
    x = 189,168.89

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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.