Finding the Fourth Proportional to 118,666.50, 163,839.05 and 70,283.99
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Solution
The fourth proportional to 118,666.50, 163,839.05 and 70,283.99 is: 97,038.86
Step by Step Solution
- Step 1: Write the proportion equation
118,666.50 : 163,839.05 = 70,283.99 : x - Step 2: Convert to fraction form
118,666.50/163,839.05 = 70,283.99/x - Step 3: Cross multiply
118,666.50x = 163,839.05 × 70,283.99 - Step 4: Simplify right side
118,666.50x = 11,515,262,151.81 - Step 5: Solve for x
x = 11,515,262,151.81/118,666.50 - Step 6: Final answer
x = 97,038.86
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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.