Finding the Fourth Proportional to 134,946.05, 186,231.08 and 83,988.95
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Solution
The fourth proportional to 134,946.05, 186,231.08 and 83,988.95 is: 115,908.19
Step by Step Solution
- Step 1: Write the proportion equation
134,946.05 : 186,231.08 = 83,988.95 : x - Step 2: Convert to fraction form
134,946.05/186,231.08 = 83,988.95/x - Step 3: Cross multiply
134,946.05x = 186,231.08 × 83,988.95 - Step 4: Simplify right side
134,946.05x = 15,641,352,145.38 - Step 5: Solve for x
x = 15,641,352,145.38/134,946.05 - Step 6: Final answer
x = 115,908.19
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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.