Home / 102,667.03-141,678.99-57,345.64

Finding the Fourth Proportional to 102,667.03, 141,678.99 and 57,345.64

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Solution

The fourth proportional to 102,667.03, 141,678.99 and 57,345.64 is: 79,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,667.03 : 141,678.99 = 57,345.64 : x
  2. Step 2: Convert to fraction form
    102,667.03/141,678.99 = 57,345.64/x
  3. Step 3: Cross multiply
    102,667.03x = 141,678.99 × 57,345.64
  4. Step 4: Simplify right side
    102,667.03x = 8,124,672,001.91
  5. Step 5: Solve for x
    x = 8,124,672,001.91/102,667.03
  6. Step 6: Final answer
    x = 79,136.14

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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.