Finding the Fourth Proportional to 118,665.50, 163,837.67 and 70,282.99
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Solution
The fourth proportional to 118,665.50, 163,837.67 and 70,282.99 is: 97,037.48
Step by Step Solution
- Step 1: Write the proportion equation
118,665.50 : 163,837.67 = 70,282.99 : x - Step 2: Convert to fraction form
118,665.50/163,837.67 = 70,282.99/x - Step 3: Cross multiply
118,665.50x = 163,837.67 × 70,282.99 - Step 4: Simplify right side
118,665.50x = 11,515,001,088.35 - Step 5: Solve for x
x = 11,515,001,088.35/118,665.50 - Step 6: Final answer
x = 97,037.48
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1.5x scale
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.