Finding the Fourth Proportional to 157,395.24, 217,202.52 and 85,775.76
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Solution
The fourth proportional to 157,395.24, 217,202.52 and 85,775.76 is: 118,368.96
Step by Step Solution
- Step 1: Write the proportion equation
157,395.24 : 217,202.52 = 85,775.76 : x - Step 2: Convert to fraction form
157,395.24/217,202.52 = 85,775.76/x - Step 3: Cross multiply
157,395.24x = 217,202.52 × 85,775.76 - Step 4: Simplify right side
157,395.24x = 18,630,711,226.92 - Step 5: Solve for x
x = 18,630,711,226.92/157,395.24 - Step 6: Final answer
x = 118,368.96
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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.