Home / 245,583.62-338,904.89-138,153.74

Finding the Fourth Proportional to 245,583.62, 338,904.89 and 138,153.74

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Solution

The fourth proportional to 245,583.62, 338,904.89 and 138,153.74 is: 190,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,583.62 : 338,904.89 = 138,153.74 : x
  2. Step 2: Convert to fraction form
    245,583.62/338,904.89 = 138,153.74/x
  3. Step 3: Cross multiply
    245,583.62x = 338,904.89 × 138,153.74
  4. Step 4: Simplify right side
    245,583.62x = 46,820,975,672.50
  5. Step 5: Solve for x
    x = 46,820,975,672.50/245,583.62
  6. Step 6: Final answer
    x = 190,651.87

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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.