Home / 104,623.56-144,378.84-56,878.12

Finding the Fourth Proportional to 104,623.56, 144,378.84 and 56,878.12

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Solution

The fourth proportional to 104,623.56, 144,378.84 and 56,878.12 is: 78,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,623.56 : 144,378.84 = 56,878.12 : x
  2. Step 2: Convert to fraction form
    104,623.56/144,378.84 = 56,878.12/x
  3. Step 3: Cross multiply
    104,623.56x = 144,378.84 × 56,878.12
  4. Step 4: Simplify right side
    104,623.56x = 8,211,996,986.98
  5. Step 5: Solve for x
    x = 8,211,996,986.98/104,623.56
  6. Step 6: Final answer
    x = 78,490.90

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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.