Finding the Fourth Proportional to 143,260.99, 197,700.21 and 79,598.79
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Solution
The fourth proportional to 143,260.99, 197,700.21 and 79,598.79 is: 109,846.35
Step by Step Solution
- Step 1: Write the proportion equation
143,260.99 : 197,700.21 = 79,598.79 : x - Step 2: Convert to fraction form
143,260.99/197,700.21 = 79,598.79/x - Step 3: Cross multiply
143,260.99x = 197,700.21 × 79,598.79 - Step 4: Simplify right side
143,260.99x = 15,736,698,044.37 - Step 5: Solve for x
x = 15,736,698,044.37/143,260.99 - Step 6: Final answer
x = 109,846.35
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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.