Finding the Fourth Proportional to 148,650.63, 205,138.01 and 84,989.76
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Solution
The fourth proportional to 148,650.63, 205,138.01 and 84,989.76 is: 117,285.95
Step by Step Solution
- Step 1: Write the proportion equation
148,650.63 : 205,138.01 = 84,989.76 : x - Step 2: Convert to fraction form
148,650.63/205,138.01 = 84,989.76/x - Step 3: Cross multiply
148,650.63x = 205,138.01 × 84,989.76 - Step 4: Simplify right side
148,650.63x = 17,434,629,811.83 - Step 5: Solve for x
x = 17,434,629,811.83/148,650.63 - Step 6: Final answer
x = 117,285.95
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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.