Home / 151,338.68-208,867.57-97,779.56

Finding the Fourth Proportional to 151,338.68, 208,867.57 and 97,779.56

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Solution

The fourth proportional to 151,338.68, 208,867.57 and 97,779.56 is: 134,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,338.68 : 208,867.57 = 97,779.56 : x
  2. Step 2: Convert to fraction form
    151,338.68/208,867.57 = 97,779.56/x
  3. Step 3: Cross multiply
    151,338.68x = 208,867.57 × 97,779.56
  4. Step 4: Simplify right side
    151,338.68x = 20,422,977,942.94
  5. Step 5: Solve for x
    x = 20,422,977,942.94/151,338.68
  6. Step 6: Final answer
    x = 134,948.83

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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.