Home / 245,127.64-338,239.32-137,677.09

Finding the Fourth Proportional to 245,127.64, 338,239.32 and 137,677.09

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Solution

The fourth proportional to 245,127.64, 338,239.32 and 137,677.09 is: 189,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,127.64 : 338,239.32 = 137,677.09 : x
  2. Step 2: Convert to fraction form
    245,127.64/338,239.32 = 137,677.09/x
  3. Step 3: Cross multiply
    245,127.64x = 338,239.32 × 137,677.09
  4. Step 4: Simplify right side
    245,127.64x = 46,567,805,301.18
  5. Step 5: Solve for x
    x = 46,567,805,301.18/245,127.64
  6. Step 6: Final answer
    x = 189,973.70

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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.