Finding the Fourth Proportional to 143,911.19, 215,867.31 and 44,070.99
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Solution
The fourth proportional to 143,911.19, 215,867.31 and 44,070.99 is: 66,106.65
Step by Step Solution
- Step 1: Write the proportion equation
143,911.19 : 215,867.31 = 44,070.99 : x - Step 2: Convert to fraction form
143,911.19/215,867.31 = 44,070.99/x - Step 3: Cross multiply
143,911.19x = 215,867.31 × 44,070.99 - Step 4: Simplify right side
143,911.19x = 9,513,486,060.34 - Step 5: Solve for x
x = 9,513,486,060.34/143,911.19 - Step 6: Final answer
x = 66,106.65
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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.