Finding the Fourth Proportional to 118,643.07, 163,713.09 and 70,887.09
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Solution
The fourth proportional to 118,643.07, 163,713.09 and 70,887.09 is: 97,815.61
Step by Step Solution
- Step 1: Write the proportion equation
118,643.07 : 163,713.09 = 70,887.09 : x - Step 2: Convert to fraction form
118,643.07/163,713.09 = 70,887.09/x - Step 3: Cross multiply
118,643.07x = 163,713.09 × 70,887.09 - Step 4: Simplify right side
118,643.07x = 11,605,144,545.01 - Step 5: Solve for x
x = 11,605,144,545.01/118,643.07 - Step 6: Final answer
x = 97,815.61
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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.