Finding the Fourth Proportional to 118,083.12, 176,341.99 and 103,775.28
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Solution
The fourth proportional to 118,083.12, 176,341.99 and 103,775.28 is: 154,975.06
Step by Step Solution
- Step 1: Write the proportion equation
118,083.12 : 176,341.99 = 103,775.28 : x - Step 2: Convert to fraction form
118,083.12/176,341.99 = 103,775.28/x - Step 3: Cross multiply
118,083.12x = 176,341.99 × 103,775.28 - Step 4: Simplify right side
118,083.12x = 18,299,938,869.13 - Step 5: Solve for x
x = 18,299,938,869.13/118,083.12 - Step 6: Final answer
x = 154,975.06
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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.