Home / 104,298.28-143,931-56,551.48

Finding the Fourth Proportional to 104,298.28, 143,931 and 56,551.48

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Solution

The fourth proportional to 104,298.28, 143,931 and 56,551.48 is: 78,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,298.28 : 143,931 = 56,551.48 : x
  2. Step 2: Convert to fraction form
    104,298.28/143,931 = 56,551.48/x
  3. Step 3: Cross multiply
    104,298.28x = 143,931 × 56,551.48
  4. Step 4: Simplify right side
    104,298.28x = 8,139,511,067.88
  5. Step 5: Solve for x
    x = 8,139,511,067.88/104,298.28
  6. Step 6: Final answer
    x = 78,040.70

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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.