Home / 120,834.28-180,975.32-57,698.62

Finding the Fourth Proportional to 120,834.28, 180,975.32 and 57,698.62

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Solution

The fourth proportional to 120,834.28, 180,975.32 and 57,698.62 is: 86,416.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,834.28 : 180,975.32 = 57,698.62 : x
  2. Step 2: Convert to fraction form
    120,834.28/180,975.32 = 57,698.62/x
  3. Step 3: Cross multiply
    120,834.28x = 180,975.32 × 57,698.62
  4. Step 4: Simplify right side
    120,834.28x = 10,442,026,218.06
  5. Step 5: Solve for x
    x = 10,442,026,218.06/120,834.28
  6. Step 6: Final answer
    x = 86,416.09

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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.