Finding the Fourth Proportional to 105,178.50, 157,813.98 and 55,246.99
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Solution
The fourth proportional to 105,178.50, 157,813.98 and 55,246.99 is: 82,894.77
Step by Step Solution
- Step 1: Write the proportion equation
105,178.50 : 157,813.98 = 55,246.99 : x - Step 2: Convert to fraction form
105,178.50/157,813.98 = 55,246.99/x - Step 3: Cross multiply
105,178.50x = 157,813.98 × 55,246.99 - Step 4: Simplify right side
105,178.50x = 8,718,747,374.92 - Step 5: Solve for x
x = 8,718,747,374.92/105,178.50 - Step 6: Final answer
x = 82,894.77
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1.5x scale
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.