Home / 139,833.58-192,973.32-76,171.24

Finding the Fourth Proportional to 139,833.58, 192,973.32 and 76,171.24

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Solution

The fourth proportional to 139,833.58, 192,973.32 and 76,171.24 is: 105,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,833.58 : 192,973.32 = 76,171.24 : x
  2. Step 2: Convert to fraction form
    139,833.58/192,973.32 = 76,171.24/x
  3. Step 3: Cross multiply
    139,833.58x = 192,973.32 × 76,171.24
  4. Step 4: Simplify right side
    139,833.58x = 14,699,017,071.32
  5. Step 5: Solve for x
    x = 14,699,017,071.32/139,833.58
  6. Step 6: Final answer
    x = 105,117.93

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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.