Finding the Fourth Proportional to 130,790.48, 180,545.10 and 88,406.42
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Solution
The fourth proportional to 130,790.48, 180,545.10 and 88,406.42 is: 122,037.52
Step by Step Solution
- Step 1: Write the proportion equation
130,790.48 : 180,545.10 = 88,406.42 : x - Step 2: Convert to fraction form
130,790.48/180,545.10 = 88,406.42/x - Step 3: Cross multiply
130,790.48x = 180,545.10 × 88,406.42 - Step 4: Simplify right side
130,790.48x = 15,961,345,939.54 - Step 5: Solve for x
x = 15,961,345,939.54/130,790.48 - Step 6: Final answer
x = 122,037.52
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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.