Home / 141,590.16-212,516.64-71,518.68

Finding the Fourth Proportional to 141,590.16, 212,516.64 and 71,518.68

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Solution

The fourth proportional to 141,590.16, 212,516.64 and 71,518.68 is: 107,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,590.16 : 212,516.64 = 71,518.68 : x
  2. Step 2: Convert to fraction form
    141,590.16/212,516.64 = 71,518.68/x
  3. Step 3: Cross multiply
    141,590.16x = 212,516.64 × 71,518.68
  4. Step 4: Simplify right side
    141,590.16x = 15,198,909,570.84
  5. Step 5: Solve for x
    x = 15,198,909,570.84/141,590.16
  6. Step 6: Final answer
    x = 107,344.39

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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.