Finding the Fourth Proportional to 152,122.24, 209,986.32 and 136,177.84
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Solution
The fourth proportional to 152,122.24, 209,986.32 and 136,177.84 is: 187,977.01
Step by Step Solution
- Step 1: Write the proportion equation
152,122.24 : 209,986.32 = 136,177.84 : x - Step 2: Convert to fraction form
152,122.24/209,986.32 = 136,177.84/x - Step 3: Cross multiply
152,122.24x = 209,986.32 × 136,177.84 - Step 4: Simplify right side
152,122.24x = 28,595,483,487.15 - Step 5: Solve for x
x = 28,595,483,487.15/152,122.24 - Step 6: Final answer
x = 187,977.01
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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.