Home / 139,685.48-192,631.92-93,848.68

Finding the Fourth Proportional to 139,685.48, 192,631.92 and 93,848.68

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Solution

The fourth proportional to 139,685.48, 192,631.92 and 93,848.68 is: 129,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,685.48 : 192,631.92 = 93,848.68 : x
  2. Step 2: Convert to fraction form
    139,685.48/192,631.92 = 93,848.68/x
  3. Step 3: Cross multiply
    139,685.48x = 192,631.92 × 93,848.68
  4. Step 4: Simplify right side
    139,685.48x = 18,078,251,417.87
  5. Step 5: Solve for x
    x = 18,078,251,417.87/139,685.48
  6. Step 6: Final answer
    x = 129,421.12

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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.