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Finding the Fourth Proportional to 139,754.77, 209,457.19 and 110,055.31

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Solution

The fourth proportional to 139,754.77, 209,457.19 and 110,055.31 is: 164,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,754.77 : 209,457.19 = 110,055.31 : x
  2. Step 2: Convert to fraction form
    139,754.77/209,457.19 = 110,055.31/x
  3. Step 3: Cross multiply
    139,754.77x = 209,457.19 × 110,055.31
  4. Step 4: Simplify right side
    139,754.77x = 23,051,875,591.11
  5. Step 5: Solve for x
    x = 23,051,875,591.11/139,754.77
  6. Step 6: Final answer
    x = 164,945.18

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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.