Home / 219,096.93-302,538.09-138,666.36

Finding the Fourth Proportional to 219,096.93, 302,538.09 and 138,666.36

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Solution

The fourth proportional to 219,096.93, 302,538.09 and 138,666.36 is: 191,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,096.93 : 302,538.09 = 138,666.36 : x
  2. Step 2: Convert to fraction form
    219,096.93/302,538.09 = 138,666.36/x
  3. Step 3: Cross multiply
    219,096.93x = 302,538.09 × 138,666.36
  4. Step 4: Simplify right side
    219,096.93x = 41,951,855,701.65
  5. Step 5: Solve for x
    x = 41,951,855,701.65/219,096.93
  6. Step 6: Final answer
    x = 191,476.24

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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.