Home / 105,618.75-145,753.88-57,873.92

Finding the Fourth Proportional to 105,618.75, 145,753.88 and 57,873.92

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Solution

The fourth proportional to 105,618.75, 145,753.88 and 57,873.92 is: 79,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,618.75 : 145,753.88 = 57,873.92 : x
  2. Step 2: Convert to fraction form
    105,618.75/145,753.88 = 57,873.92/x
  3. Step 3: Cross multiply
    105,618.75x = 145,753.88 × 57,873.92
  4. Step 4: Simplify right side
    105,618.75x = 8,435,347,372.67
  5. Step 5: Solve for x
    x = 8,435,347,372.67/105,618.75
  6. Step 6: Final answer
    x = 79,866.00

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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.