Finding the Fourth Proportional to 72,491.08, 108,746.52 and 68,117.08
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Solution
The fourth proportional to 72,491.08, 108,746.52 and 68,117.08 is: 102,184.92
Step by Step Solution
- Step 1: Write the proportion equation
72,491.08 : 108,746.52 = 68,117.08 : x - Step 2: Convert to fraction form
72,491.08/108,746.52 = 68,117.08/x - Step 3: Cross multiply
72,491.08x = 108,746.52 × 68,117.08 - Step 4: Simplify right side
72,491.08x = 7,407,495,402.56 - Step 5: Solve for x
x = 7,407,495,402.56/72,491.08 - Step 6: Final answer
x = 102,184.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.