Finding the Fourth Proportional to 156,118.04, 215,419.80 and 91,562.84
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Solution
The fourth proportional to 156,118.04, 215,419.80 and 91,562.84 is: 126,343.17
Step by Step Solution
- Step 1: Write the proportion equation
156,118.04 : 215,419.80 = 91,562.84 : x - Step 2: Convert to fraction form
156,118.04/215,419.80 = 91,562.84/x - Step 3: Cross multiply
156,118.04x = 215,419.80 × 91,562.84 - Step 4: Simplify right side
156,118.04x = 19,724,448,680.23 - Step 5: Solve for x
x = 19,724,448,680.23/156,118.04 - Step 6: Final answer
x = 126,343.17
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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.