Home / 103,694.34-143,112.12-58,381.32

Finding the Fourth Proportional to 103,694.34, 143,112.12 and 58,381.32

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Solution

The fourth proportional to 103,694.34, 143,112.12 and 58,381.32 is: 80,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,694.34 : 143,112.12 = 58,381.32 : x
  2. Step 2: Convert to fraction form
    103,694.34/143,112.12 = 58,381.32/x
  3. Step 3: Cross multiply
    103,694.34x = 143,112.12 × 58,381.32
  4. Step 4: Simplify right side
    103,694.34x = 8,355,074,473.60
  5. Step 5: Solve for x
    x = 8,355,074,473.60/103,694.34
  6. Step 6: Final answer
    x = 80,574.06

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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.