Home / 386,667.52-579,895.68-106,118.08

Finding the Fourth Proportional to 386,667.52, 579,895.68 and 106,118.08

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Solution

The fourth proportional to 386,667.52, 579,895.68 and 106,118.08 is: 159,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,667.52 : 579,895.68 = 106,118.08 : x
  2. Step 2: Convert to fraction form
    386,667.52/579,895.68 = 106,118.08/x
  3. Step 3: Cross multiply
    386,667.52x = 579,895.68 × 106,118.08
  4. Step 4: Simplify right side
    386,667.52x = 61,537,416,161.89
  5. Step 5: Solve for x
    x = 61,537,416,161.89/386,667.52
  6. Step 6: Final answer
    x = 159,148.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.