Home / 151,741.68-209,417.40-83,770.80

Finding the Fourth Proportional to 151,741.68, 209,417.40 and 83,770.80

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Solution

The fourth proportional to 151,741.68, 209,417.40 and 83,770.80 is: 115,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,741.68 : 209,417.40 = 83,770.80 : x
  2. Step 2: Convert to fraction form
    151,741.68/209,417.40 = 83,770.80/x
  3. Step 3: Cross multiply
    151,741.68x = 209,417.40 × 83,770.80
  4. Step 4: Simplify right side
    151,741.68x = 17,543,063,131.92
  5. Step 5: Solve for x
    x = 17,543,063,131.92/151,741.68
  6. Step 6: Final answer
    x = 115,611.37

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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.