Home / 104,638.09-144,406.46-56,890.41

Finding the Fourth Proportional to 104,638.09, 144,406.46 and 56,890.41

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Solution

The fourth proportional to 104,638.09, 144,406.46 and 56,890.41 is: 78,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,638.09 : 144,406.46 = 56,890.41 : x
  2. Step 2: Convert to fraction form
    104,638.09/144,406.46 = 56,890.41/x
  3. Step 3: Cross multiply
    104,638.09x = 144,406.46 × 56,890.41
  4. Step 4: Simplify right side
    104,638.09x = 8,215,341,994.02
  5. Step 5: Solve for x
    x = 8,215,341,994.02/104,638.09
  6. Step 6: Final answer
    x = 78,511.97

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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.