Home / 103,664.47-143,055.36-57,723.79

Finding the Fourth Proportional to 103,664.47, 143,055.36 and 57,723.79

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Solution

The fourth proportional to 103,664.47, 143,055.36 and 57,723.79 is: 79,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.47 : 143,055.36 = 57,723.79 : x
  2. Step 2: Convert to fraction form
    103,664.47/143,055.36 = 57,723.79/x
  3. Step 3: Cross multiply
    103,664.47x = 143,055.36 × 57,723.79
  4. Step 4: Simplify right side
    103,664.47x = 8,257,697,559.01
  5. Step 5: Solve for x
    x = 8,257,697,559.01/103,664.47
  6. Step 6: Final answer
    x = 79,657.93

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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.