Home / 103,718.48-143,122.41-57,774.74

Finding the Fourth Proportional to 103,718.48, 143,122.41 and 57,774.74

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Solution

The fourth proportional to 103,718.48, 143,122.41 and 57,774.74 is: 79,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,718.48 : 143,122.41 = 57,774.74 : x
  2. Step 2: Convert to fraction form
    103,718.48/143,122.41 = 57,774.74/x
  3. Step 3: Cross multiply
    103,718.48x = 143,122.41 × 57,774.74
  4. Step 4: Simplify right side
    103,718.48x = 8,268,859,310.31
  5. Step 5: Solve for x
    x = 8,268,859,310.31/103,718.48
  6. Step 6: Final answer
    x = 79,724.07

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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.