Home / 212,110.90-318,166.35-93,721.30

Finding the Fourth Proportional to 212,110.90, 318,166.35 and 93,721.30

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Solution

The fourth proportional to 212,110.90, 318,166.35 and 93,721.30 is: 140,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,110.90 : 318,166.35 = 93,721.30 : x
  2. Step 2: Convert to fraction form
    212,110.90/318,166.35 = 93,721.30/x
  3. Step 3: Cross multiply
    212,110.90x = 318,166.35 × 93,721.30
  4. Step 4: Simplify right side
    212,110.90x = 29,818,963,938.26
  5. Step 5: Solve for x
    x = 29,818,963,938.26/212,110.90
  6. Step 6: Final answer
    x = 140,581.95

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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.