Home / 149,254.20-205,960.36-84,724.74

Finding the Fourth Proportional to 149,254.20, 205,960.36 and 84,724.74

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Solution

The fourth proportional to 149,254.20, 205,960.36 and 84,724.74 is: 116,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,254.20 : 205,960.36 = 84,724.74 : x
  2. Step 2: Convert to fraction form
    149,254.20/205,960.36 = 84,724.74/x
  3. Step 3: Cross multiply
    149,254.20x = 205,960.36 × 84,724.74
  4. Step 4: Simplify right side
    149,254.20x = 17,449,937,951.31
  5. Step 5: Solve for x
    x = 17,449,937,951.31/149,254.20
  6. Step 6: Final answer
    x = 116,914.22

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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.