Home / 212,090.80-318,138.40-62,333.76

Finding the Fourth Proportional to 212,090.80, 318,138.40 and 62,333.76

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Solution

The fourth proportional to 212,090.80, 318,138.40 and 62,333.76 is: 93,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,090.80 : 318,138.40 = 62,333.76 : x
  2. Step 2: Convert to fraction form
    212,090.80/318,138.40 = 62,333.76/x
  3. Step 3: Cross multiply
    212,090.80x = 318,138.40 × 62,333.76
  4. Step 4: Simplify right side
    212,090.80x = 19,830,762,672.38
  5. Step 5: Solve for x
    x = 19,830,762,672.38/212,090.80
  6. Step 6: Final answer
    x = 93,501.29

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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.