Finding the Fourth Proportional to 138,484.68, 191,266.49 and 93,083.84
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Solution
The fourth proportional to 138,484.68, 191,266.49 and 93,083.84 is: 128,561.65
Step by Step Solution
- Step 1: Write the proportion equation
138,484.68 : 191,266.49 = 93,083.84 : x - Step 2: Convert to fraction form
138,484.68/191,266.49 = 93,083.84/x - Step 3: Cross multiply
138,484.68x = 191,266.49 × 93,083.84 - Step 4: Simplify right side
138,484.68x = 17,803,818,396.19 - Step 5: Solve for x
x = 17,803,818,396.19/138,484.68 - Step 6: Final answer
x = 128,561.65
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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.