Home / 209,320.64-288,853.76-118,682.73

Finding the Fourth Proportional to 209,320.64, 288,853.76 and 118,682.73

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Solution

The fourth proportional to 209,320.64, 288,853.76 and 118,682.73 is: 163,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.64 : 288,853.76 = 118,682.73 : x
  2. Step 2: Convert to fraction form
    209,320.64/288,853.76 = 118,682.73/x
  3. Step 3: Cross multiply
    209,320.64x = 288,853.76 × 118,682.73
  4. Step 4: Simplify right side
    209,320.64x = 34,281,953,104.27
  5. Step 5: Solve for x
    x = 34,281,953,104.27/209,320.64
  6. Step 6: Final answer
    x = 163,777.23

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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.