Home / 141,247.20-211,768.16-66,328.80

Finding the Fourth Proportional to 141,247.20, 211,768.16 and 66,328.80

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Solution

The fourth proportional to 141,247.20, 211,768.16 and 66,328.80 is: 99,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,247.20 : 211,768.16 = 66,328.80 : x
  2. Step 2: Convert to fraction form
    141,247.20/211,768.16 = 66,328.80/x
  3. Step 3: Cross multiply
    141,247.20x = 211,768.16 × 66,328.80
  4. Step 4: Simplify right side
    141,247.20x = 14,046,327,931.01
  5. Step 5: Solve for x
    x = 14,046,327,931.01/141,247.20
  6. Step 6: Final answer
    x = 99,445.00

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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.