Finding the Fourth Proportional to 156,504.68, 216,060.14 and 122,440.76
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Solution
The fourth proportional to 156,504.68, 216,060.14 and 122,440.76 is: 169,033.72
Step by Step Solution
- Step 1: Write the proportion equation
156,504.68 : 216,060.14 = 122,440.76 : x - Step 2: Convert to fraction form
156,504.68/216,060.14 = 122,440.76/x - Step 3: Cross multiply
156,504.68x = 216,060.14 × 122,440.76 - Step 4: Simplify right side
156,504.68x = 26,454,567,747.31 - Step 5: Solve for x
x = 26,454,567,747.31/156,504.68 - Step 6: Final answer
x = 169,033.72
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1.5x scale
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.