Home / 245,036.11-338,124.63-137,605.27

Finding the Fourth Proportional to 245,036.11, 338,124.63 and 137,605.27

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Solution

The fourth proportional to 245,036.11, 338,124.63 and 137,605.27 is: 189,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,036.11 : 338,124.63 = 137,605.27 : x
  2. Step 2: Convert to fraction form
    245,036.11/338,124.63 = 137,605.27/x
  3. Step 3: Cross multiply
    245,036.11x = 338,124.63 × 137,605.27
  4. Step 4: Simplify right side
    245,036.11x = 46,527,731,004.80
  5. Step 5: Solve for x
    x = 46,527,731,004.80/245,036.11
  6. Step 6: Final answer
    x = 189,881.12

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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.