Finding the Fourth Proportional to 115,345.68, 159,177.06 and 65,044.68
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Solution
The fourth proportional to 115,345.68, 159,177.06 and 65,044.68 is: 89,761.67
Step by Step Solution
- Step 1: Write the proportion equation
115,345.68 : 159,177.06 = 65,044.68 : x - Step 2: Convert to fraction form
115,345.68/159,177.06 = 65,044.68/x - Step 3: Cross multiply
115,345.68x = 159,177.06 × 65,044.68 - Step 4: Simplify right side
115,345.68x = 10,353,620,931.04 - Step 5: Solve for x
x = 10,353,620,931.04/115,345.68 - Step 6: Final answer
x = 89,761.67
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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.