Finding the Fourth Proportional to 128,027.98, 176,652.24 and 73,569.62
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Solution
The fourth proportional to 128,027.98, 176,652.24 and 73,569.62 is: 101,510.92
Step by Step Solution
- Step 1: Write the proportion equation
128,027.98 : 176,652.24 = 73,569.62 : x - Step 2: Convert to fraction form
128,027.98/176,652.24 = 73,569.62/x - Step 3: Cross multiply
128,027.98x = 176,652.24 × 73,569.62 - Step 4: Simplify right side
128,027.98x = 12,996,238,168.95 - Step 5: Solve for x
x = 12,996,238,168.95/128,027.98 - Step 6: Final answer
x = 101,510.92
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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.