Finding the Fourth Proportional to 157,187.70, 235,318.23 and 103,781.70
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Solution
The fourth proportional to 157,187.70, 235,318.23 and 103,781.70 is: 155,366.65
Step by Step Solution
- Step 1: Write the proportion equation
157,187.70 : 235,318.23 = 103,781.70 : x - Step 2: Convert to fraction form
157,187.70/235,318.23 = 103,781.70/x - Step 3: Cross multiply
157,187.70x = 235,318.23 × 103,781.70 - Step 4: Simplify right side
157,187.70x = 24,421,725,950.39 - Step 5: Solve for x
x = 24,421,725,950.39/157,187.70 - Step 6: Final answer
x = 155,366.65
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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.