Home / 141,485.04-212,287.56-66,603.54

Finding the Fourth Proportional to 141,485.04, 212,287.56 and 66,603.54

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Solution

The fourth proportional to 141,485.04, 212,287.56 and 66,603.54 is: 99,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,485.04 : 212,287.56 = 66,603.54 : x
  2. Step 2: Convert to fraction form
    141,485.04/212,287.56 = 66,603.54/x
  3. Step 3: Cross multiply
    141,485.04x = 212,287.56 × 66,603.54
  4. Step 4: Simplify right side
    141,485.04x = 14,139,102,993.96
  5. Step 5: Solve for x
    x = 14,139,102,993.96/141,485.04
  6. Step 6: Final answer
    x = 99,933.55

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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.