Home / 212,342.04-318,562.38-72,100.71

Finding the Fourth Proportional to 212,342.04, 318,562.38 and 72,100.71

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Solution

The fourth proportional to 212,342.04, 318,562.38 and 72,100.71 is: 108,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,342.04 : 318,562.38 = 72,100.71 : x
  2. Step 2: Convert to fraction form
    212,342.04/318,562.38 = 72,100.71/x
  3. Step 3: Cross multiply
    212,342.04x = 318,562.38 × 72,100.71
  4. Step 4: Simplify right side
    212,342.04x = 22,968,573,777.29
  5. Step 5: Solve for x
    x = 22,968,573,777.29/212,342.04
  6. Step 6: Final answer
    x = 108,167.81

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1.5x scale

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.