Finding the Fourth Proportional to 93,793.13, 129,462.67 and 81,181.70
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Solution
The fourth proportional to 93,793.13, 129,462.67 and 81,181.70 is: 112,055.11
Step by Step Solution
- Step 1: Write the proportion equation
93,793.13 : 129,462.67 = 81,181.70 : x - Step 2: Convert to fraction form
93,793.13/129,462.67 = 81,181.70/x - Step 3: Cross multiply
93,793.13x = 129,462.67 × 81,181.70 - Step 4: Simplify right side
93,793.13x = 10,509,999,637.14 - Step 5: Solve for x
x = 10,509,999,637.14/93,793.13 - Step 6: Final answer
x = 112,055.11
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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.