Home / 209,571.13-314,167.11-76,420.24

Finding the Fourth Proportional to 209,571.13, 314,167.11 and 76,420.24

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Solution

The fourth proportional to 209,571.13, 314,167.11 and 76,420.24 is: 114,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,571.13 : 314,167.11 = 76,420.24 : x
  2. Step 2: Convert to fraction form
    209,571.13/314,167.11 = 76,420.24/x
  3. Step 3: Cross multiply
    209,571.13x = 314,167.11 × 76,420.24
  4. Step 4: Simplify right side
    209,571.13x = 24,008,725,946.31
  5. Step 5: Solve for x
    x = 24,008,725,946.31/209,571.13
  6. Step 6: Final answer
    x = 114,561.23

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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.