Finding the Fourth Proportional to 90,703.04, 135,368.62 and 88,341.08
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Solution
The fourth proportional to 90,703.04, 135,368.62 and 88,341.08 is: 131,843.54
Step by Step Solution
- Step 1: Write the proportion equation
90,703.04 : 135,368.62 = 88,341.08 : x - Step 2: Convert to fraction form
90,703.04/135,368.62 = 88,341.08/x - Step 3: Cross multiply
90,703.04x = 135,368.62 × 88,341.08 - Step 4: Simplify right side
90,703.04x = 11,958,610,088.91 - Step 5: Solve for x
x = 11,958,610,088.91/90,703.04 - Step 6: Final answer
x = 131,843.54
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.