Home / 139,908.58-193,074.09-76,246.36

Finding the Fourth Proportional to 139,908.58, 193,074.09 and 76,246.36

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Solution

The fourth proportional to 139,908.58, 193,074.09 and 76,246.36 is: 105,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,908.58 : 193,074.09 = 76,246.36 : x
  2. Step 2: Convert to fraction form
    139,908.58/193,074.09 = 76,246.36/x
  3. Step 3: Cross multiply
    139,908.58x = 193,074.09 × 76,246.36
  4. Step 4: Simplify right side
    139,908.58x = 14,721,196,572.81
  5. Step 5: Solve for x
    x = 14,721,196,572.81/139,908.58
  6. Step 6: Final answer
    x = 105,220.11

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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.