Finding the Fourth Proportional to 168,698.14, 232,652.63 and 139,972.30
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Solution
The fourth proportional to 168,698.14, 232,652.63 and 139,972.30 is: 193,036.65
Step by Step Solution
- Step 1: Write the proportion equation
168,698.14 : 232,652.63 = 139,972.30 : x - Step 2: Convert to fraction form
168,698.14/232,652.63 = 139,972.30/x - Step 3: Cross multiply
168,698.14x = 232,652.63 × 139,972.30 - Step 4: Simplify right side
168,698.14x = 32,564,923,722.15 - Step 5: Solve for x
x = 32,564,923,722.15/168,698.14 - Step 6: Final answer
x = 193,036.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.