Home / 103,990.02-143,506.26-58,677.61

Finding the Fourth Proportional to 103,990.02, 143,506.26 and 58,677.61

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Solution

The fourth proportional to 103,990.02, 143,506.26 and 58,677.61 is: 80,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,990.02 : 143,506.26 = 58,677.61 : x
  2. Step 2: Convert to fraction form
    103,990.02/143,506.26 = 58,677.61/x
  3. Step 3: Cross multiply
    103,990.02x = 143,506.26 × 58,677.61
  4. Step 4: Simplify right side
    103,990.02x = 8,420,604,356.84
  5. Step 5: Solve for x
    x = 8,420,604,356.84/103,990.02
  6. Step 6: Final answer
    x = 80,975.12

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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.