Finding the Fourth Proportional to 155,377.51, 214,427.36 and 87,397.65
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Solution
The fourth proportional to 155,377.51, 214,427.36 and 87,397.65 is: 120,612.35
Step by Step Solution
- Step 1: Write the proportion equation
155,377.51 : 214,427.36 = 87,397.65 : x - Step 2: Convert to fraction form
155,377.51/214,427.36 = 87,397.65/x - Step 3: Cross multiply
155,377.51x = 214,427.36 × 87,397.65 - Step 4: Simplify right side
155,377.51x = 18,740,447,359.70 - Step 5: Solve for x
x = 18,740,447,359.70/155,377.51 - Step 6: Final answer
x = 120,612.35
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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.