Finding the Fourth Proportional to 115,254.74, 159,114.30 and 79,636.52
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Solution
The fourth proportional to 115,254.74, 159,114.30 and 79,636.52 is: 109,941.76
Step by Step Solution
- Step 1: Write the proportion equation
115,254.74 : 159,114.30 = 79,636.52 : x - Step 2: Convert to fraction form
115,254.74/159,114.30 = 79,636.52/x - Step 3: Cross multiply
115,254.74x = 159,114.30 × 79,636.52 - Step 4: Simplify right side
115,254.74x = 12,671,309,134.24 - Step 5: Solve for x
x = 12,671,309,134.24/115,254.74 - Step 6: Final answer
x = 109,941.76
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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.