Home / 141,505.20-212,257.80-66,600.45

Finding the Fourth Proportional to 141,505.20, 212,257.80 and 66,600.45

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Solution

The fourth proportional to 141,505.20, 212,257.80 and 66,600.45 is: 99,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,505.20 : 212,257.80 = 66,600.45 : x
  2. Step 2: Convert to fraction form
    141,505.20/212,257.80 = 66,600.45/x
  3. Step 3: Cross multiply
    141,505.20x = 212,257.80 × 66,600.45
  4. Step 4: Simplify right side
    141,505.20x = 14,136,464,996.01
  5. Step 5: Solve for x
    x = 14,136,464,996.01/141,505.20
  6. Step 6: Final answer
    x = 99,900.68

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1.5x scale

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.