Finding the Fourth Proportional to 158,386.38, 218,490.39 and 97,937.70
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Solution
The fourth proportional to 158,386.38, 218,490.39 and 97,937.70 is: 135,102.82
Step by Step Solution
- Step 1: Write the proportion equation
158,386.38 : 218,490.39 = 97,937.70 : x - Step 2: Convert to fraction form
158,386.38/218,490.39 = 97,937.70/x - Step 3: Cross multiply
158,386.38x = 218,490.39 × 97,937.70 - Step 4: Simplify right side
158,386.38x = 21,398,446,268.70 - Step 5: Solve for x
x = 21,398,446,268.70/158,386.38 - Step 6: Final answer
x = 135,102.82
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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.