Home / 145,851.88-201,274.41-81,320.35

Finding the Fourth Proportional to 145,851.88, 201,274.41 and 81,320.35

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Solution

The fourth proportional to 145,851.88, 201,274.41 and 81,320.35 is: 112,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,851.88 : 201,274.41 = 81,320.35 : x
  2. Step 2: Convert to fraction form
    145,851.88/201,274.41 = 81,320.35/x
  3. Step 3: Cross multiply
    145,851.88x = 201,274.41 × 81,320.35
  4. Step 4: Simplify right side
    145,851.88x = 16,367,705,467.24
  5. Step 5: Solve for x
    x = 16,367,705,467.24/145,851.88
  6. Step 6: Final answer
    x = 112,221.42

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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.