Finding the Fourth Proportional to 156,938.80, 235,275.44 and 68,125.52
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Solution
The fourth proportional to 156,938.80, 235,275.44 and 68,125.52 is: 102,130.65
Step by Step Solution
- Step 1: Write the proportion equation
156,938.80 : 235,275.44 = 68,125.52 : x - Step 2: Convert to fraction form
156,938.80/235,275.44 = 68,125.52/x - Step 3: Cross multiply
156,938.80x = 235,275.44 × 68,125.52 - Step 4: Simplify right side
156,938.80x = 16,028,261,693.23 - Step 5: Solve for x
x = 16,028,261,693.23/156,938.80 - Step 6: Final answer
x = 102,130.65
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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.