Finding the Fourth Proportional to 147,686.64, 203,804.96 and 84,023.07
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Solution
The fourth proportional to 147,686.64, 203,804.96 and 84,023.07 is: 115,950.35
Step by Step Solution
- Step 1: Write the proportion equation
147,686.64 : 203,804.96 = 84,023.07 : x - Step 2: Convert to fraction form
147,686.64/203,804.96 = 84,023.07/x - Step 3: Cross multiply
147,686.64x = 203,804.96 × 84,023.07 - Step 4: Simplify right side
147,686.64x = 17,124,318,000.31 - Step 5: Solve for x
x = 17,124,318,000.31/147,686.64 - Step 6: Final answer
x = 115,950.35
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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.