Home / 141,555.50-212,027-66,563.26

Finding the Fourth Proportional to 141,555.50, 212,027 and 66,563.26

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Solution

The fourth proportional to 141,555.50, 212,027 and 66,563.26 is: 99,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,555.50 : 212,027 = 66,563.26 : x
  2. Step 2: Convert to fraction form
    141,555.50/212,027 = 66,563.26/x
  3. Step 3: Cross multiply
    141,555.50x = 212,027 × 66,563.26
  4. Step 4: Simplify right side
    141,555.50x = 14,113,208,328.02
  5. Step 5: Solve for x
    x = 14,113,208,328.02/141,555.50
  6. Step 6: Final answer
    x = 99,700.88

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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.