Finding the Fourth Proportional to 142,926.60, 197,077.18 and 91,174.66
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Solution
The fourth proportional to 142,926.60, 197,077.18 and 91,174.66 is: 125,717.99
Step by Step Solution
- Step 1: Write the proportion equation
142,926.60 : 197,077.18 = 91,174.66 : x - Step 2: Convert to fraction form
142,926.60/197,077.18 = 91,174.66/x - Step 3: Cross multiply
142,926.60x = 197,077.18 × 91,174.66 - Step 4: Simplify right side
142,926.60x = 17,968,445,182.71 - Step 5: Solve for x
x = 17,968,445,182.71/142,926.60 - Step 6: Final answer
x = 125,717.99
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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.