Finding the Fourth Proportional to 118,363.50, 163,299.15 and 69,955.14
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Solution
The fourth proportional to 118,363.50, 163,299.15 and 69,955.14 is: 96,512.99
Step by Step Solution
- Step 1: Write the proportion equation
118,363.50 : 163,299.15 = 69,955.14 : x - Step 2: Convert to fraction form
118,363.50/163,299.15 = 69,955.14/x - Step 3: Cross multiply
118,363.50x = 163,299.15 × 69,955.14 - Step 4: Simplify right side
118,363.50x = 11,423,614,900.13 - Step 5: Solve for x
x = 11,423,614,900.13/118,363.50 - Step 6: Final answer
x = 96,512.99
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1.5x scale
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.