Home / 141,778.79-212,318.03-105,668.67

Finding the Fourth Proportional to 141,778.79, 212,318.03 and 105,668.67

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Solution

The fourth proportional to 141,778.79, 212,318.03 and 105,668.67 is: 158,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,778.79 : 212,318.03 = 105,668.67 : x
  2. Step 2: Convert to fraction form
    141,778.79/212,318.03 = 105,668.67/x
  3. Step 3: Cross multiply
    141,778.79x = 212,318.03 × 105,668.67
  4. Step 4: Simplify right side
    141,778.79x = 22,435,364,111.29
  5. Step 5: Solve for x
    x = 22,435,364,111.29/141,778.79
  6. Step 6: Final answer
    x = 158,242.03

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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.