Home / 245,581.74-338,922.36-138,145.32

Finding the Fourth Proportional to 245,581.74, 338,922.36 and 138,145.32

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Solution

The fourth proportional to 245,581.74, 338,922.36 and 138,145.32 is: 190,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,581.74 : 338,922.36 = 138,145.32 : x
  2. Step 2: Convert to fraction form
    245,581.74/338,922.36 = 138,145.32/x
  3. Step 3: Cross multiply
    245,581.74x = 338,922.36 × 138,145.32
  4. Step 4: Simplify right side
    245,581.74x = 46,820,537,877.36
  5. Step 5: Solve for x
    x = 46,820,537,877.36/245,581.74
  6. Step 6: Final answer
    x = 190,651.54

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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.