Home / 170,440.20-255,377.76-103,678.36

Finding the Fourth Proportional to 170,440.20, 255,377.76 and 103,678.36

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Solution

The fourth proportional to 170,440.20, 255,377.76 and 103,678.36 is: 155,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,440.20 : 255,377.76 = 103,678.36 : x
  2. Step 2: Convert to fraction form
    170,440.20/255,377.76 = 103,678.36/x
  3. Step 3: Cross multiply
    170,440.20x = 255,377.76 × 103,678.36
  4. Step 4: Simplify right side
    170,440.20x = 26,477,147,337.27
  5. Step 5: Solve for x
    x = 26,477,147,337.27/170,440.20
  6. Step 6: Final answer
    x = 155,345.67

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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.