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Finding the Fourth Proportional to 149,071.60, 223,612.80 and 43,901.20

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Solution

The fourth proportional to 149,071.60, 223,612.80 and 43,901.20 is: 65,853.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,071.60 : 223,612.80 = 43,901.20 : x
  2. Step 2: Convert to fraction form
    149,071.60/223,612.80 = 43,901.20/x
  3. Step 3: Cross multiply
    149,071.60x = 223,612.80 × 43,901.20
  4. Step 4: Simplify right side
    149,071.60x = 9,816,870,255.36
  5. Step 5: Solve for x
    x = 9,816,870,255.36/149,071.60
  6. Step 6: Final answer
    x = 65,853.39

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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.