Home / 209,904.78-289,439.69-141,803.52

Finding the Fourth Proportional to 209,904.78, 289,439.69 and 141,803.52

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Solution

The fourth proportional to 209,904.78, 289,439.69 and 141,803.52 is: 195,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,904.78 : 289,439.69 = 141,803.52 : x
  2. Step 2: Convert to fraction form
    209,904.78/289,439.69 = 141,803.52/x
  3. Step 3: Cross multiply
    209,904.78x = 289,439.69 × 141,803.52
  4. Step 4: Simplify right side
    209,904.78x = 41,043,566,288.16
  5. Step 5: Solve for x
    x = 41,043,566,288.16/209,904.78
  6. Step 6: Final answer
    x = 195,534.22

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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.