Home / 105,684.06-145,842.60-57,937.41

Finding the Fourth Proportional to 105,684.06, 145,842.60 and 57,937.41

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Solution

The fourth proportional to 105,684.06, 145,842.60 and 57,937.41 is: 79,952.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,684.06 : 145,842.60 = 57,937.41 : x
  2. Step 2: Convert to fraction form
    105,684.06/145,842.60 = 57,937.41/x
  3. Step 3: Cross multiply
    105,684.06x = 145,842.60 × 57,937.41
  4. Step 4: Simplify right side
    105,684.06x = 8,449,742,511.67
  5. Step 5: Solve for x
    x = 8,449,742,511.67/105,684.06
  6. Step 6: Final answer
    x = 79,952.86

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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.