Home / 235,128.81-352,691.33-139,727.19

Finding the Fourth Proportional to 235,128.81, 352,691.33 and 139,727.19

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Solution

The fourth proportional to 235,128.81, 352,691.33 and 139,727.19 is: 209,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,128.81 : 352,691.33 = 139,727.19 : x
  2. Step 2: Convert to fraction form
    235,128.81/352,691.33 = 139,727.19/x
  3. Step 3: Cross multiply
    235,128.81x = 352,691.33 × 139,727.19
  4. Step 4: Simplify right side
    235,128.81x = 49,280,569,888.18
  5. Step 5: Solve for x
    x = 49,280,569,888.18/235,128.81
  6. Step 6: Final answer
    x = 209,589.67

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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.