Finding the Fourth Proportional to 97,947.33, 135,128.45 and 63,944.94
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Solution
The fourth proportional to 97,947.33, 135,128.45 and 63,944.94 is: 88,218.65
Step by Step Solution
- Step 1: Write the proportion equation
97,947.33 : 135,128.45 = 63,944.94 : x - Step 2: Convert to fraction form
97,947.33/135,128.45 = 63,944.94/x - Step 3: Cross multiply
97,947.33x = 135,128.45 × 63,944.94 - Step 4: Simplify right side
97,947.33x = 8,640,781,294.14 - Step 5: Solve for x
x = 8,640,781,294.14/97,947.33 - Step 6: Final answer
x = 88,218.65
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1.5x scale
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.