Finding the Fourth Proportional to 138,587.18, 191,250.33 and 74,924.96
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Solution
The fourth proportional to 138,587.18, 191,250.33 and 74,924.96 is: 103,396.46
Step by Step Solution
- Step 1: Write the proportion equation
138,587.18 : 191,250.33 = 74,924.96 : x - Step 2: Convert to fraction form
138,587.18/191,250.33 = 74,924.96/x - Step 3: Cross multiply
138,587.18x = 191,250.33 × 74,924.96 - Step 4: Simplify right side
138,587.18x = 14,329,423,325.24 - Step 5: Solve for x
x = 14,329,423,325.24/138,587.18 - Step 6: Final answer
x = 103,396.46
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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.