Home / 104,420.85-144,100.90-56,674.21

Finding the Fourth Proportional to 104,420.85, 144,100.90 and 56,674.21

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Solution

The fourth proportional to 104,420.85, 144,100.90 and 56,674.21 is: 78,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,420.85 : 144,100.90 = 56,674.21 : x
  2. Step 2: Convert to fraction form
    104,420.85/144,100.90 = 56,674.21/x
  3. Step 3: Cross multiply
    104,420.85x = 144,100.90 × 56,674.21
  4. Step 4: Simplify right side
    104,420.85x = 8,166,804,083.89
  5. Step 5: Solve for x
    x = 8,166,804,083.89/104,420.85
  6. Step 6: Final answer
    x = 78,210.48

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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.