Home / 212,105.14-318,157.80-62,345.44

Finding the Fourth Proportional to 212,105.14, 318,157.80 and 62,345.44

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Solution

The fourth proportional to 212,105.14, 318,157.80 and 62,345.44 is: 93,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,105.14 : 318,157.80 = 62,345.44 : x
  2. Step 2: Convert to fraction form
    212,105.14/318,157.80 = 62,345.44/x
  3. Step 3: Cross multiply
    212,105.14x = 318,157.80 × 62,345.44
  4. Step 4: Simplify right side
    212,105.14x = 19,835,688,030.43
  5. Step 5: Solve for x
    x = 19,835,688,030.43/212,105.14
  6. Step 6: Final answer
    x = 93,518.19

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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.