Finding the Fourth Proportional to 168,781.12, 232,914.59 and 92,298.08
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Solution
The fourth proportional to 168,781.12, 232,914.59 and 92,298.08 is: 127,369.52
Step by Step Solution
- Step 1: Write the proportion equation
168,781.12 : 232,914.59 = 92,298.08 : x - Step 2: Convert to fraction form
168,781.12/232,914.59 = 92,298.08/x - Step 3: Cross multiply
168,781.12x = 232,914.59 × 92,298.08 - Step 4: Simplify right side
168,781.12x = 21,497,569,927.90 - Step 5: Solve for x
x = 21,497,569,927.90/168,781.12 - Step 6: Final answer
x = 127,369.52
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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.