Home / 209,023.56-288,572.00-137,611.16

Finding the Fourth Proportional to 209,023.56, 288,572.00 and 137,611.16

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Solution

The fourth proportional to 209,023.56, 288,572.00 and 137,611.16 is: 189,982.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,023.56 : 288,572.00 = 137,611.16 : x
  2. Step 2: Convert to fraction form
    209,023.56/288,572.00 = 137,611.16/x
  3. Step 3: Cross multiply
    209,023.56x = 288,572.00 × 137,611.16
  4. Step 4: Simplify right side
    209,023.56x = 39,710,725,532.60
  5. Step 5: Solve for x
    x = 39,710,725,532.60/209,023.56
  6. Step 6: Final answer
    x = 189,982.06

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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.