Home / 212,467.96-318,028.02-118,689.40

Finding the Fourth Proportional to 212,467.96, 318,028.02 and 118,689.40

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Solution

The fourth proportional to 212,467.96, 318,028.02 and 118,689.40 is: 177,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,467.96 : 318,028.02 = 118,689.40 : x
  2. Step 2: Convert to fraction form
    212,467.96/318,028.02 = 118,689.40/x
  3. Step 3: Cross multiply
    212,467.96x = 318,028.02 × 118,689.40
  4. Step 4: Simplify right side
    212,467.96x = 37,746,554,876.99
  5. Step 5: Solve for x
    x = 37,746,554,876.99/212,467.96
  6. Step 6: Final answer
    x = 177,657.63

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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.