Home / 209,321.12-288,871.06-118,676.04

Finding the Fourth Proportional to 209,321.12, 288,871.06 and 118,676.04

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Solution

The fourth proportional to 209,321.12, 288,871.06 and 118,676.04 is: 163,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,321.12 : 288,871.06 = 118,676.04 : x
  2. Step 2: Convert to fraction form
    209,321.12/288,871.06 = 118,676.04/x
  3. Step 3: Cross multiply
    209,321.12x = 288,871.06 × 118,676.04
  4. Step 4: Simplify right side
    209,321.12x = 34,282,073,471.40
  5. Step 5: Solve for x
    x = 34,282,073,471.40/209,321.12
  6. Step 6: Final answer
    x = 163,777.42

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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.