Home / 105,840.11-158,695.76-44,978.63

Finding the Fourth Proportional to 105,840.11, 158,695.76 and 44,978.63

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Solution

The fourth proportional to 105,840.11, 158,695.76 and 44,978.63 is: 67,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,840.11 : 158,695.76 = 44,978.63 : x
  2. Step 2: Convert to fraction form
    105,840.11/158,695.76 = 44,978.63/x
  3. Step 3: Cross multiply
    105,840.11x = 158,695.76 × 44,978.63
  4. Step 4: Simplify right side
    105,840.11x = 7,137,916,853.24
  5. Step 5: Solve for x
    x = 7,137,916,853.24/105,840.11
  6. Step 6: Final answer
    x = 67,440.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.