Home / 342,618.90-513,942.74-105,966.06

Finding the Fourth Proportional to 342,618.90, 513,942.74 and 105,966.06

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Solution

The fourth proportional to 342,618.90, 513,942.74 and 105,966.06 is: 158,953.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,618.90 : 513,942.74 = 105,966.06 : x
  2. Step 2: Convert to fraction form
    342,618.90/513,942.74 = 105,966.06/x
  3. Step 3: Cross multiply
    342,618.90x = 513,942.74 × 105,966.06
  4. Step 4: Simplify right side
    342,618.90x = 54,460,487,223.40
  5. Step 5: Solve for x
    x = 54,460,487,223.40/342,618.90
  6. Step 6: Final answer
    x = 158,953.54

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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.