Home / 103,999.06-143,506.35-58,674.40

Finding the Fourth Proportional to 103,999.06, 143,506.35 and 58,674.40

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Solution

The fourth proportional to 103,999.06, 143,506.35 and 58,674.40 is: 80,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,999.06 : 143,506.35 = 58,674.40 : x
  2. Step 2: Convert to fraction form
    103,999.06/143,506.35 = 58,674.40/x
  3. Step 3: Cross multiply
    103,999.06x = 143,506.35 × 58,674.40
  4. Step 4: Simplify right side
    103,999.06x = 8,420,148,623.67
  5. Step 5: Solve for x
    x = 8,420,148,623.67/103,999.06
  6. Step 6: Final answer
    x = 80,963.70

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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.