Home / 209,784.24-289,609.47-142,158.51

Finding the Fourth Proportional to 209,784.24, 289,609.47 and 142,158.51

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Solution

The fourth proportional to 209,784.24, 289,609.47 and 142,158.51 is: 196,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,784.24 : 289,609.47 = 142,158.51 : x
  2. Step 2: Convert to fraction form
    209,784.24/289,609.47 = 142,158.51/x
  3. Step 3: Cross multiply
    209,784.24x = 289,609.47 × 142,158.51
  4. Step 4: Simplify right side
    209,784.24x = 41,170,450,737.09
  5. Step 5: Solve for x
    x = 41,170,450,737.09/209,784.24
  6. Step 6: Final answer
    x = 196,251.40

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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.