Home / 141,219.18-211,726.20-66,300.78

Finding the Fourth Proportional to 141,219.18, 211,726.20 and 66,300.78

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Solution

The fourth proportional to 141,219.18, 211,726.20 and 66,300.78 is: 99,403.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,219.18 : 211,726.20 = 66,300.78 : x
  2. Step 2: Convert to fraction form
    141,219.18/211,726.20 = 66,300.78/x
  3. Step 3: Cross multiply
    141,219.18x = 211,726.20 × 66,300.78
  4. Step 4: Simplify right side
    141,219.18x = 14,037,612,206.44
  5. Step 5: Solve for x
    x = 14,037,612,206.44/141,219.18
  6. Step 6: Final answer
    x = 99,403.01

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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.