Home / 105,385.19-158,078.05-43,055.69

Finding the Fourth Proportional to 105,385.19, 158,078.05 and 43,055.69

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Solution

The fourth proportional to 105,385.19, 158,078.05 and 43,055.69 is: 64,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,385.19 : 158,078.05 = 43,055.69 : x
  2. Step 2: Convert to fraction form
    105,385.19/158,078.05 = 43,055.69/x
  3. Step 3: Cross multiply
    105,385.19x = 158,078.05 × 43,055.69
  4. Step 4: Simplify right side
    105,385.19x = 6,806,158,618.58
  5. Step 5: Solve for x
    x = 6,806,158,618.58/105,385.19
  6. Step 6: Final answer
    x = 64,583.64

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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.