Finding the Fourth Proportional to 191,094.12, 286,675.66 and 78,712.99
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Solution
The fourth proportional to 191,094.12, 286,675.66 and 78,712.99 is: 118,083.68
Step by Step Solution
- Step 1: Write the proportion equation
191,094.12 : 286,675.66 = 78,712.99 : x - Step 2: Convert to fraction form
191,094.12/286,675.66 = 78,712.99/x - Step 3: Cross multiply
191,094.12x = 286,675.66 × 78,712.99 - Step 4: Simplify right side
191,094.12x = 22,565,097,965.26 - Step 5: Solve for x
x = 22,565,097,965.26/191,094.12 - Step 6: Final answer
x = 118,083.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.