Finding the Fourth Proportional to 106,521.95, 159,771.12 and 38,130.79
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Solution
The fourth proportional to 106,521.95, 159,771.12 and 38,130.79 is: 57,191.96
Step by Step Solution
- Step 1: Write the proportion equation
106,521.95 : 159,771.12 = 38,130.79 : x - Step 2: Convert to fraction form
106,521.95/159,771.12 = 38,130.79/x - Step 3: Cross multiply
106,521.95x = 159,771.12 × 38,130.79 - Step 4: Simplify right side
106,521.95x = 6,092,199,553.02 - Step 5: Solve for x
x = 6,092,199,553.02/106,521.95 - Step 6: Final answer
x = 57,191.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.