Finding the Fourth Proportional to 156,744.60, 216,331.98 and 88,765.08
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Solution
The fourth proportional to 156,744.60, 216,331.98 and 88,765.08 is: 122,509.65
Step by Step Solution
- Step 1: Write the proportion equation
156,744.60 : 216,331.98 = 88,765.08 : x - Step 2: Convert to fraction form
156,744.60/216,331.98 = 88,765.08/x - Step 3: Cross multiply
156,744.60x = 216,331.98 × 88,765.08 - Step 4: Simplify right side
156,744.60x = 19,202,725,511.26 - Step 5: Solve for x
x = 19,202,725,511.26/156,744.60 - Step 6: Final answer
x = 122,509.65
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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.