Finding the Fourth Proportional to 156,789.70, 234,838.95 and 136,053.70
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Solution
The fourth proportional to 156,789.70, 234,838.95 and 136,053.70 is: 203,780.66
Step by Step Solution
- Step 1: Write the proportion equation
156,789.70 : 234,838.95 = 136,053.70 : x - Step 2: Convert to fraction form
156,789.70/234,838.95 = 136,053.70/x - Step 3: Cross multiply
156,789.70x = 234,838.95 × 136,053.70 - Step 4: Simplify right side
156,789.70x = 31,950,708,051.62 - Step 5: Solve for x
x = 31,950,708,051.62/156,789.70 - Step 6: Final answer
x = 203,780.66
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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.