Finding the Fourth Proportional to 97,998.63, 135,279.48 and 66,210.58
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Solution
The fourth proportional to 97,998.63, 135,279.48 and 66,210.58 is: 91,398.56
Step by Step Solution
- Step 1: Write the proportion equation
97,998.63 : 135,279.48 = 66,210.58 : x - Step 2: Convert to fraction form
97,998.63/135,279.48 = 66,210.58/x - Step 3: Cross multiply
97,998.63x = 135,279.48 × 66,210.58 - Step 4: Simplify right side
97,998.63x = 8,956,933,250.29 - Step 5: Solve for x
x = 8,956,933,250.29/97,998.63 - Step 6: Final answer
x = 91,398.56
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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.