Finding the Fourth Proportional to 157,115.34, 235,709.91 and 51,934.31
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Solution
The fourth proportional to 157,115.34, 235,709.91 and 51,934.31 is: 77,913.65
Step by Step Solution
- Step 1: Write the proportion equation
157,115.34 : 235,709.91 = 51,934.31 : x - Step 2: Convert to fraction form
157,115.34/235,709.91 = 51,934.31/x - Step 3: Cross multiply
157,115.34x = 235,709.91 × 51,934.31 - Step 4: Simplify right side
157,115.34x = 12,241,430,357.46 - Step 5: Solve for x
x = 12,241,430,357.46/157,115.34 - Step 6: Final answer
x = 77,913.65
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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.