Finding the Fourth Proportional to 158,602.08, 218,873.07 and 86,977.38
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Solution
The fourth proportional to 158,602.08, 218,873.07 and 86,977.38 is: 120,029.99
Step by Step Solution
- Step 1: Write the proportion equation
158,602.08 : 218,873.07 = 86,977.38 : x - Step 2: Convert to fraction form
158,602.08/218,873.07 = 86,977.38/x - Step 3: Cross multiply
158,602.08x = 218,873.07 × 86,977.38 - Step 4: Simplify right side
158,602.08x = 19,037,006,181.16 - Step 5: Solve for x
x = 19,037,006,181.16/158,602.08 - Step 6: Final answer
x = 120,029.99
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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.