Home / 105,067.11-144,989.73-57,320.46

Finding the Fourth Proportional to 105,067.11, 144,989.73 and 57,320.46

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Solution

The fourth proportional to 105,067.11, 144,989.73 and 57,320.46 is: 79,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,067.11 : 144,989.73 = 57,320.46 : x
  2. Step 2: Convert to fraction form
    105,067.11/144,989.73 = 57,320.46/x
  3. Step 3: Cross multiply
    105,067.11x = 144,989.73 × 57,320.46
  4. Step 4: Simplify right side
    105,067.11x = 8,310,878,018.88
  5. Step 5: Solve for x
    x = 8,310,878,018.88/105,067.11
  6. Step 6: Final answer
    x = 79,100.66

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1.5x scale

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.