Home / 141,703.50-195,533.82-81,271.02

Finding the Fourth Proportional to 141,703.50, 195,533.82 and 81,271.02

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Solution

The fourth proportional to 141,703.50, 195,533.82 and 81,271.02 is: 112,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,703.50 : 195,533.82 = 81,271.02 : x
  2. Step 2: Convert to fraction form
    141,703.50/195,533.82 = 81,271.02/x
  3. Step 3: Cross multiply
    141,703.50x = 195,533.82 × 81,271.02
  4. Step 4: Simplify right side
    141,703.50x = 15,891,232,995.90
  5. Step 5: Solve for x
    x = 15,891,232,995.90/141,703.50
  6. Step 6: Final answer
    x = 112,144.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.