Home / 209,439.64-314,188.66-67,289.22

Finding the Fourth Proportional to 209,439.64, 314,188.66 and 67,289.22

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Solution

The fourth proportional to 209,439.64, 314,188.66 and 67,289.22 is: 100,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,439.64 : 314,188.66 = 67,289.22 : x
  2. Step 2: Convert to fraction form
    209,439.64/314,188.66 = 67,289.22/x
  3. Step 3: Cross multiply
    209,439.64x = 314,188.66 × 67,289.22
  4. Step 4: Simplify right side
    209,439.64x = 21,141,509,864.25
  5. Step 5: Solve for x
    x = 21,141,509,864.25/209,439.64
  6. Step 6: Final answer
    x = 100,943.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.