Home / 105,087.78-145,022.00-57,341.93

Finding the Fourth Proportional to 105,087.78, 145,022.00 and 57,341.93

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Solution

The fourth proportional to 105,087.78, 145,022.00 and 57,341.93 is: 79,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,087.78 : 145,022.00 = 57,341.93 : x
  2. Step 2: Convert to fraction form
    105,087.78/145,022.00 = 57,341.93/x
  3. Step 3: Cross multiply
    105,087.78x = 145,022.00 × 57,341.93
  4. Step 4: Simplify right side
    105,087.78x = 8,315,840,360.64
  5. Step 5: Solve for x
    x = 8,315,840,360.64/105,087.78
  6. Step 6: Final answer
    x = 79,132.33

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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.