Home / 141,743.80-212,615.70-82,646.20

Finding the Fourth Proportional to 141,743.80, 212,615.70 and 82,646.20

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Solution

The fourth proportional to 141,743.80, 212,615.70 and 82,646.20 is: 123,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,743.80 : 212,615.70 = 82,646.20 : x
  2. Step 2: Convert to fraction form
    141,743.80/212,615.70 = 82,646.20/x
  3. Step 3: Cross multiply
    141,743.80x = 212,615.70 × 82,646.20
  4. Step 4: Simplify right side
    141,743.80x = 17,571,879,665.34
  5. Step 5: Solve for x
    x = 17,571,879,665.34/141,743.80
  6. Step 6: Final answer
    x = 123,969.30

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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.