Home / 245,436.14-338,693.88-136,539.93

Finding the Fourth Proportional to 245,436.14, 338,693.88 and 136,539.93

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Solution

The fourth proportional to 245,436.14, 338,693.88 and 136,539.93 is: 188,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,436.14 : 338,693.88 = 136,539.93 : x
  2. Step 2: Convert to fraction form
    245,436.14/338,693.88 = 136,539.93/x
  3. Step 3: Cross multiply
    245,436.14x = 338,693.88 × 136,539.93
  4. Step 4: Simplify right side
    245,436.14x = 46,245,238,666.63
  5. Step 5: Solve for x
    x = 46,245,238,666.63/245,436.14
  6. Step 6: Final answer
    x = 188,420.66

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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.