Home / 342,211.23-513,145.52-105,523.15

Finding the Fourth Proportional to 342,211.23, 513,145.52 and 105,523.15

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Solution

The fourth proportional to 342,211.23, 513,145.52 and 105,523.15 is: 158,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,211.23 : 513,145.52 = 105,523.15 : x
  2. Step 2: Convert to fraction form
    342,211.23/513,145.52 = 105,523.15/x
  3. Step 3: Cross multiply
    342,211.23x = 513,145.52 × 105,523.15
  4. Step 4: Simplify right side
    342,211.23x = 54,148,731,678.79
  5. Step 5: Solve for x
    x = 54,148,731,678.79/342,211.23
  6. Step 6: Final answer
    x = 158,231.90

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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.