Finding the Fourth Proportional to 113,970.99, 157,279.82 and 63,669.99
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Solution
The fourth proportional to 113,970.99, 157,279.82 and 63,669.99 is: 87,864.50
Step by Step Solution
- Step 1: Write the proportion equation
113,970.99 : 157,279.82 = 63,669.99 : x - Step 2: Convert to fraction form
113,970.99/157,279.82 = 63,669.99/x - Step 3: Cross multiply
113,970.99x = 157,279.82 × 63,669.99 - Step 4: Simplify right side
113,970.99x = 10,014,004,566.60 - Step 5: Solve for x
x = 10,014,004,566.60/113,970.99 - Step 6: Final answer
x = 87,864.50
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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.