Home / 209,166.47-288,543.46-136,611.87

Finding the Fourth Proportional to 209,166.47, 288,543.46 and 136,611.87

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Solution

The fourth proportional to 209,166.47, 288,543.46 and 136,611.87 is: 188,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,166.47 : 288,543.46 = 136,611.87 : x
  2. Step 2: Convert to fraction form
    209,166.47/288,543.46 = 136,611.87/x
  3. Step 3: Cross multiply
    209,166.47x = 288,543.46 × 136,611.87
  4. Step 4: Simplify right side
    209,166.47x = 39,418,459,521.09
  5. Step 5: Solve for x
    x = 39,418,459,521.09/209,166.47
  6. Step 6: Final answer
    x = 188,454.97

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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.