Finding the Fourth Proportional to 135,693.40, 187,134.36 and 84,710.82
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Solution
The fourth proportional to 135,693.40, 187,134.36 and 84,710.82 is: 116,824.44
Step by Step Solution
- Step 1: Write the proportion equation
135,693.40 : 187,134.36 = 84,710.82 : x - Step 2: Convert to fraction form
135,693.40/187,134.36 = 84,710.82/x - Step 3: Cross multiply
135,693.40x = 187,134.36 × 84,710.82 - Step 4: Simplify right side
135,693.40x = 15,852,305,085.78 - Step 5: Solve for x
x = 15,852,305,085.78/135,693.40 - Step 6: Final answer
x = 116,824.44
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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.