Home / 212,106.86-318,160.29-87,444.62

Finding the Fourth Proportional to 212,106.86, 318,160.29 and 87,444.62

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Solution

The fourth proportional to 212,106.86, 318,160.29 and 87,444.62 is: 131,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,106.86 : 318,160.29 = 87,444.62 : x
  2. Step 2: Convert to fraction form
    212,106.86/318,160.29 = 87,444.62/x
  3. Step 3: Cross multiply
    212,106.86x = 318,160.29 × 87,444.62
  4. Step 4: Simplify right side
    212,106.86x = 27,821,405,658.14
  5. Step 5: Solve for x
    x = 27,821,405,658.14/212,106.86
  6. Step 6: Final answer
    x = 131,166.93

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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.