Home / 141,420.87-212,200.29-66,548.39

Finding the Fourth Proportional to 141,420.87, 212,200.29 and 66,548.39

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Solution

The fourth proportional to 141,420.87, 212,200.29 and 66,548.39 is: 99,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.87 : 212,200.29 = 66,548.39 : x
  2. Step 2: Convert to fraction form
    141,420.87/212,200.29 = 66,548.39/x
  3. Step 3: Cross multiply
    141,420.87x = 212,200.29 × 66,548.39
  4. Step 4: Simplify right side
    141,420.87x = 14,121,586,596.03
  5. Step 5: Solve for x
    x = 14,121,586,596.03/141,420.87
  6. Step 6: Final answer
    x = 99,855.04

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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.