Home / 202,598.90-279,603.31-111,972.55

Finding the Fourth Proportional to 202,598.90, 279,603.31 and 111,972.55

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Solution

The fourth proportional to 202,598.90, 279,603.31 and 111,972.55 is: 154,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,598.90 : 279,603.31 = 111,972.55 : x
  2. Step 2: Convert to fraction form
    202,598.90/279,603.31 = 111,972.55/x
  3. Step 3: Cross multiply
    202,598.90x = 279,603.31 × 111,972.55
  4. Step 4: Simplify right side
    202,598.90x = 31,307,895,609.14
  5. Step 5: Solve for x
    x = 31,307,895,609.14/202,598.90
  6. Step 6: Final answer
    x = 154,531.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.