Home / 212,172.21-318,248.72-62,417.39

Finding the Fourth Proportional to 212,172.21, 318,248.72 and 62,417.39

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Solution

The fourth proportional to 212,172.21, 318,248.72 and 62,417.39 is: 93,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,172.21 : 318,248.72 = 62,417.39 : x
  2. Step 2: Convert to fraction form
    212,172.21/318,248.72 = 62,417.39/x
  3. Step 3: Cross multiply
    212,172.21x = 318,248.72 × 62,417.39
  4. Step 4: Simplify right side
    212,172.21x = 19,864,252,569.91
  5. Step 5: Solve for x
    x = 19,864,252,569.91/212,172.21
  6. Step 6: Final answer
    x = 93,623.25

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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.