Home / 387,369.48-581,087.68-106,886.72

Finding the Fourth Proportional to 387,369.48, 581,087.68 and 106,886.72

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Solution

The fourth proportional to 387,369.48, 581,087.68 and 106,886.72 is: 160,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,369.48 : 581,087.68 = 106,886.72 : x
  2. Step 2: Convert to fraction form
    387,369.48/581,087.68 = 106,886.72/x
  3. Step 3: Cross multiply
    387,369.48x = 581,087.68 × 106,886.72
  4. Step 4: Simplify right side
    387,369.48x = 62,110,556,147.61
  5. Step 5: Solve for x
    x = 62,110,556,147.61/387,369.48
  6. Step 6: Final answer
    x = 160,339.31

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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.