Home / 209,135.52-288,606.24-118,508.74

Finding the Fourth Proportional to 209,135.52, 288,606.24 and 118,508.74

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Solution

The fourth proportional to 209,135.52, 288,606.24 and 118,508.74 is: 163,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,135.52 : 288,606.24 = 118,508.74 : x
  2. Step 2: Convert to fraction form
    209,135.52/288,606.24 = 118,508.74/x
  3. Step 3: Cross multiply
    209,135.52x = 288,606.24 × 118,508.74
  4. Step 4: Simplify right side
    209,135.52x = 34,202,361,858.54
  5. Step 5: Solve for x
    x = 34,202,361,858.54/209,135.52
  6. Step 6: Final answer
    x = 163,541.62

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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.