Finding the Fourth Proportional to 156,916.03, 235,432.37 and 72,716.53
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Solution
The fourth proportional to 156,916.03, 235,432.37 and 72,716.53 is: 109,101.82
Step by Step Solution
- Step 1: Write the proportion equation
156,916.03 : 235,432.37 = 72,716.53 : x - Step 2: Convert to fraction form
156,916.03/235,432.37 = 72,716.53/x - Step 3: Cross multiply
156,916.03x = 235,432.37 × 72,716.53 - Step 4: Simplify right side
156,916.03x = 17,119,824,996.08 - Step 5: Solve for x
x = 17,119,824,996.08/156,916.03 - Step 6: Final answer
x = 109,101.82
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1.5x scale
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.