Finding the Fourth Proportional to 99,516.08, 137,507.07 and 79,537.83
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Solution
The fourth proportional to 99,516.08, 137,507.07 and 79,537.83 is: 109,901.98
Step by Step Solution
- Step 1: Write the proportion equation
99,516.08 : 137,507.07 = 79,537.83 : x - Step 2: Convert to fraction form
99,516.08/137,507.07 = 79,537.83/x - Step 3: Cross multiply
99,516.08x = 137,507.07 × 79,537.83 - Step 4: Simplify right side
99,516.08x = 10,937,013,957.46 - Step 5: Solve for x
x = 10,937,013,957.46/99,516.08 - Step 6: Final answer
x = 109,901.98
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1.5x scale
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.