Home / 103,608.04-143,025.38-79,725.80

Finding the Fourth Proportional to 103,608.04, 143,025.38 and 79,725.80

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Solution

The fourth proportional to 103,608.04, 143,025.38 and 79,725.80 is: 110,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,608.04 : 143,025.38 = 79,725.80 : x
  2. Step 2: Convert to fraction form
    103,608.04/143,025.38 = 79,725.80/x
  3. Step 3: Cross multiply
    103,608.04x = 143,025.38 × 79,725.80
  4. Step 4: Simplify right side
    103,608.04x = 11,402,812,840.80
  5. Step 5: Solve for x
    x = 11,402,812,840.80/103,608.04
  6. Step 6: Final answer
    x = 110,057.22

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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.