Home / 105,268.93-145,269.37-57,521.18

Finding the Fourth Proportional to 105,268.93, 145,269.37 and 57,521.18

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Solution

The fourth proportional to 105,268.93, 145,269.37 and 57,521.18 is: 79,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,268.93 : 145,269.37 = 57,521.18 : x
  2. Step 2: Convert to fraction form
    105,268.93/145,269.37 = 57,521.18/x
  3. Step 3: Cross multiply
    105,268.93x = 145,269.37 × 57,521.18
  4. Step 4: Simplify right side
    105,268.93x = 8,356,065,580.26
  5. Step 5: Solve for x
    x = 8,356,065,580.26/105,268.93
  6. Step 6: Final answer
    x = 79,378.27

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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.