Home / 99,678.87-149,543.51-33,119.33

Finding the Fourth Proportional to 99,678.87, 149,543.51 and 33,119.33

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Solution

The fourth proportional to 99,678.87, 149,543.51 and 33,119.33 is: 49,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,678.87 : 149,543.51 = 33,119.33 : x
  2. Step 2: Convert to fraction form
    99,678.87/149,543.51 = 33,119.33/x
  3. Step 3: Cross multiply
    99,678.87x = 149,543.51 × 33,119.33
  4. Step 4: Simplify right side
    99,678.87x = 4,952,779,943.73
  5. Step 5: Solve for x
    x = 4,952,779,943.73/99,678.87
  6. Step 6: Final answer
    x = 49,687.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.