Finding the Fourth Proportional to 157,038.40, 235,484.70 and 68,246.20
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Solution
The fourth proportional to 157,038.40, 235,484.70 and 68,246.20 is: 102,337.62
Step by Step Solution
- Step 1: Write the proportion equation
157,038.40 : 235,484.70 = 68,246.20 : x - Step 2: Convert to fraction form
157,038.40/235,484.70 = 68,246.20/x - Step 3: Cross multiply
157,038.40x = 235,484.70 × 68,246.20 - Step 4: Simplify right side
157,038.40x = 16,070,935,933.14 - Step 5: Solve for x
x = 16,070,935,933.14/157,038.40 - Step 6: Final answer
x = 102,337.62
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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.