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Finding the Fourth Proportional to 139,470.58, 192,461.19 and 75,807.82

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Solution

The fourth proportional to 139,470.58, 192,461.19 and 75,807.82 is: 104,610.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,470.58 : 192,461.19 = 75,807.82 : x
  2. Step 2: Convert to fraction form
    139,470.58/192,461.19 = 75,807.82/x
  3. Step 3: Cross multiply
    139,470.58x = 192,461.19 × 75,807.82
  4. Step 4: Simplify right side
    139,470.58x = 14,590,063,248.51
  5. Step 5: Solve for x
    x = 14,590,063,248.51/139,470.58
  6. Step 6: Final answer
    x = 104,610.33

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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.