Home / 105,400.06-158,100.36-43,070.56

Finding the Fourth Proportional to 105,400.06, 158,100.36 and 43,070.56

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Solution

The fourth proportional to 105,400.06, 158,100.36 and 43,070.56 is: 64,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,400.06 : 158,100.36 = 43,070.56 : x
  2. Step 2: Convert to fraction form
    105,400.06/158,100.36 = 43,070.56/x
  3. Step 3: Cross multiply
    105,400.06x = 158,100.36 × 43,070.56
  4. Step 4: Simplify right side
    105,400.06x = 6,809,471,041.40
  5. Step 5: Solve for x
    x = 6,809,471,041.40/105,400.06
  6. Step 6: Final answer
    x = 64,605.95

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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.