Finding the Fourth Proportional to 135,010.08, 186,305.52 and 81,312.48
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Solution
The fourth proportional to 135,010.08, 186,305.52 and 81,312.48 is: 112,206.17
Step by Step Solution
- Step 1: Write the proportion equation
135,010.08 : 186,305.52 = 81,312.48 : x - Step 2: Convert to fraction form
135,010.08/186,305.52 = 81,312.48/x - Step 3: Cross multiply
135,010.08x = 186,305.52 × 81,312.48 - Step 4: Simplify right side
135,010.08x = 15,148,963,868.89 - Step 5: Solve for x
x = 15,148,963,868.89/135,010.08 - Step 6: Final answer
x = 112,206.17
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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.