Home / 212,488.12-318,657.88-62,688.64

Finding the Fourth Proportional to 212,488.12, 318,657.88 and 62,688.64

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Solution

The fourth proportional to 212,488.12, 318,657.88 and 62,688.64 is: 94,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,488.12 : 318,657.88 = 62,688.64 : x
  2. Step 2: Convert to fraction form
    212,488.12/318,657.88 = 62,688.64/x
  3. Step 3: Cross multiply
    212,488.12x = 318,657.88 × 62,688.64
  4. Step 4: Simplify right side
    212,488.12x = 19,976,229,122.48
  5. Step 5: Solve for x
    x = 19,976,229,122.48/212,488.12
  6. Step 6: Final answer
    x = 94,011.04

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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.