Home / 141,649.95-211,982.85-129,840.15

Finding the Fourth Proportional to 141,649.95, 211,982.85 and 129,840.15

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Solution

The fourth proportional to 141,649.95, 211,982.85 and 129,840.15 is: 194,309.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,649.95 : 211,982.85 = 129,840.15 : x
  2. Step 2: Convert to fraction form
    141,649.95/211,982.85 = 129,840.15/x
  3. Step 3: Cross multiply
    141,649.95x = 211,982.85 × 129,840.15
  4. Step 4: Simplify right side
    141,649.95x = 27,523,885,041.43
  5. Step 5: Solve for x
    x = 27,523,885,041.43/141,649.95
  6. Step 6: Final answer
    x = 194,309.18

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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.