Home / 103,708.20-143,106.36-58,385.36

Finding the Fourth Proportional to 103,708.20, 143,106.36 and 58,385.36

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Solution

The fourth proportional to 103,708.20, 143,106.36 and 58,385.36 is: 80,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,708.20 : 143,106.36 = 58,385.36 : x
  2. Step 2: Convert to fraction form
    103,708.20/143,106.36 = 58,385.36/x
  3. Step 3: Cross multiply
    103,708.20x = 143,106.36 × 58,385.36
  4. Step 4: Simplify right side
    103,708.20x = 8,355,315,412.41
  5. Step 5: Solve for x
    x = 8,355,315,412.41/103,708.20
  6. Step 6: Final answer
    x = 80,565.62

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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.