Home / 103,999.47-143,506.93-58,674.81

Finding the Fourth Proportional to 103,999.47, 143,506.93 and 58,674.81

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Solution

The fourth proportional to 103,999.47, 143,506.93 and 58,674.81 is: 80,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,999.47 : 143,506.93 = 58,674.81 : x
  2. Step 2: Convert to fraction form
    103,999.47/143,506.93 = 58,674.81/x
  3. Step 3: Cross multiply
    103,999.47x = 143,506.93 × 58,674.81
  4. Step 4: Simplify right side
    103,999.47x = 8,420,242,114.32
  5. Step 5: Solve for x
    x = 8,420,242,114.32/103,999.47
  6. Step 6: Final answer
    x = 80,964.28

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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.