Home / 209,439.44-289,001.16-118,788.56

Finding the Fourth Proportional to 209,439.44, 289,001.16 and 118,788.56

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Solution

The fourth proportional to 209,439.44, 289,001.16 and 118,788.56 is: 163,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,439.44 : 289,001.16 = 118,788.56 : x
  2. Step 2: Convert to fraction form
    209,439.44/289,001.16 = 118,788.56/x
  3. Step 3: Cross multiply
    209,439.44x = 289,001.16 × 118,788.56
  4. Step 4: Simplify right side
    209,439.44x = 34,330,031,634.73
  5. Step 5: Solve for x
    x = 34,330,031,634.73/209,439.44
  6. Step 6: Final answer
    x = 163,913.88

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1.5x scale

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.