Home / 209,529.12-289,157.28-114,039.28

Finding the Fourth Proportional to 209,529.12, 289,157.28 and 114,039.28

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Solution

The fourth proportional to 209,529.12, 289,157.28 and 114,039.28 is: 157,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,529.12 : 289,157.28 = 114,039.28 : x
  2. Step 2: Convert to fraction form
    209,529.12/289,157.28 = 114,039.28/x
  3. Step 3: Cross multiply
    209,529.12x = 289,157.28 × 114,039.28
  4. Step 4: Simplify right side
    209,529.12x = 32,975,288,017.96
  5. Step 5: Solve for x
    x = 32,975,288,017.96/209,529.12
  6. Step 6: Final answer
    x = 157,378.07

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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.