Home / 209,392.75-288,962.13-118,719.73

Finding the Fourth Proportional to 209,392.75, 288,962.13 and 118,719.73

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Solution

The fourth proportional to 209,392.75, 288,962.13 and 118,719.73 is: 163,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,392.75 : 288,962.13 = 118,719.73 : x
  2. Step 2: Convert to fraction form
    209,392.75/288,962.13 = 118,719.73/x
  3. Step 3: Cross multiply
    209,392.75x = 288,962.13 × 118,719.73
  4. Step 4: Simplify right side
    209,392.75x = 34,305,506,053.82
  5. Step 5: Solve for x
    x = 34,305,506,053.82/209,392.75
  6. Step 6: Final answer
    x = 163,833.30

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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.