Finding the Fourth Proportional to 155,106.29, 213,992.18 and 101,422.73
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Solution
The fourth proportional to 155,106.29, 213,992.18 and 101,422.73 is: 139,927.73
Step by Step Solution
- Step 1: Write the proportion equation
155,106.29 : 213,992.18 = 101,422.73 : x - Step 2: Convert to fraction form
155,106.29/213,992.18 = 101,422.73/x - Step 3: Cross multiply
155,106.29x = 213,992.18 × 101,422.73 - Step 4: Simplify right side
155,106.29x = 21,703,671,094.25 - Step 5: Solve for x
x = 21,703,671,094.25/155,106.29 - Step 6: Final answer
x = 139,927.73
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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.