Finding the Fourth Proportional to 147,312.68, 203,284.26 and 83,642.12
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Solution
The fourth proportional to 147,312.68, 203,284.26 and 83,642.12 is: 115,422.02
Step by Step Solution
- Step 1: Write the proportion equation
147,312.68 : 203,284.26 = 83,642.12 : x - Step 2: Convert to fraction form
147,312.68/203,284.26 = 83,642.12/x - Step 3: Cross multiply
147,312.68x = 203,284.26 × 83,642.12 - Step 4: Simplify right side
147,312.68x = 17,003,126,469.03 - Step 5: Solve for x
x = 17,003,126,469.03/147,312.68 - Step 6: Final answer
x = 115,422.02
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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.