Home / 209,490.56-289,103.50-118,850.34

Finding the Fourth Proportional to 209,490.56, 289,103.50 and 118,850.34

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Solution

The fourth proportional to 209,490.56, 289,103.50 and 118,850.34 is: 164,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,490.56 : 289,103.50 = 118,850.34 : x
  2. Step 2: Convert to fraction form
    209,490.56/289,103.50 = 118,850.34/x
  3. Step 3: Cross multiply
    209,490.56x = 289,103.50 × 118,850.34
  4. Step 4: Simplify right side
    209,490.56x = 34,360,049,270.19
  5. Step 5: Solve for x
    x = 34,360,049,270.19/209,490.56
  6. Step 6: Final answer
    x = 164,017.18

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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.