Finding the Fourth Proportional to 156,838.64, 235,125.70 and 68,025.26
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Solution
The fourth proportional to 156,838.64, 235,125.70 and 68,025.26 is: 101,980.53
Step by Step Solution
- Step 1: Write the proportion equation
156,838.64 : 235,125.70 = 68,025.26 : x - Step 2: Convert to fraction form
156,838.64/235,125.70 = 68,025.26/x - Step 3: Cross multiply
156,838.64x = 235,125.70 × 68,025.26 - Step 4: Simplify right side
156,838.64x = 15,994,486,875.18 - Step 5: Solve for x
x = 15,994,486,875.18/156,838.64 - Step 6: Final answer
x = 101,980.53
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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.