Finding the Fourth Proportional to 99,641.23, 148,801.38 and 87,568.99
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Solution
The fourth proportional to 99,641.23, 148,801.38 and 87,568.99 is: 130,773.04
Step by Step Solution
- Step 1: Write the proportion equation
99,641.23 : 148,801.38 = 87,568.99 : x - Step 2: Convert to fraction form
99,641.23/148,801.38 = 87,568.99/x - Step 3: Cross multiply
99,641.23x = 148,801.38 × 87,568.99 - Step 4: Simplify right side
99,641.23x = 13,030,386,557.21 - Step 5: Solve for x
x = 13,030,386,557.21/99,641.23 - Step 6: Final answer
x = 130,773.04
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.