Home / 155,035.45-213,946.19-87,052.96

Finding the Fourth Proportional to 155,035.45, 213,946.19 and 87,052.96

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Solution

The fourth proportional to 155,035.45, 213,946.19 and 87,052.96 is: 120,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,035.45 : 213,946.19 = 87,052.96 : x
  2. Step 2: Convert to fraction form
    155,035.45/213,946.19 = 87,052.96/x
  3. Step 3: Cross multiply
    155,035.45x = 213,946.19 × 87,052.96
  4. Step 4: Simplify right side
    155,035.45x = 18,624,648,050.49
  5. Step 5: Solve for x
    x = 18,624,648,050.49/155,035.45
  6. Step 6: Final answer
    x = 120,131.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.