Finding the Fourth Proportional to 132,749.12, 183,191.28 and 72,320.96
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Solution
The fourth proportional to 132,749.12, 183,191.28 and 72,320.96 is: 99,801.56
Step by Step Solution
- Step 1: Write the proportion equation
132,749.12 : 183,191.28 = 72,320.96 : x - Step 2: Convert to fraction form
132,749.12/183,191.28 = 72,320.96/x - Step 3: Cross multiply
132,749.12x = 183,191.28 × 72,320.96 - Step 4: Simplify right side
132,749.12x = 13,248,569,233.23 - Step 5: Solve for x
x = 13,248,569,233.23/132,749.12 - Step 6: Final answer
x = 99,801.56
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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.