Finding the Fourth Proportional to 157,029.68, 216,603.70 and 136,934.64
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Solution
The fourth proportional to 157,029.68, 216,603.70 and 136,934.64 is: 188,884.99
Step by Step Solution
- Step 1: Write the proportion equation
157,029.68 : 216,603.70 = 136,934.64 : x - Step 2: Convert to fraction form
157,029.68/216,603.70 = 136,934.64/x - Step 3: Cross multiply
157,029.68x = 216,603.70 × 136,934.64 - Step 4: Simplify right side
157,029.68x = 29,660,549,682.17 - Step 5: Solve for x
x = 29,660,549,682.17/157,029.68 - Step 6: Final answer
x = 188,884.99
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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.