Home / 141,040.80-211,561.20-85,053.60

Finding the Fourth Proportional to 141,040.80, 211,561.20 and 85,053.60

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Solution

The fourth proportional to 141,040.80, 211,561.20 and 85,053.60 is: 127,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,040.80 : 211,561.20 = 85,053.60 : x
  2. Step 2: Convert to fraction form
    141,040.80/211,561.20 = 85,053.60/x
  3. Step 3: Cross multiply
    141,040.80x = 211,561.20 × 85,053.60
  4. Step 4: Simplify right side
    141,040.80x = 17,994,041,680.32
  5. Step 5: Solve for x
    x = 17,994,041,680.32/141,040.80
  6. Step 6: Final answer
    x = 127,580.40

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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.