Finding the Fourth Proportional to 128,024.92, 176,673.12 and 70,664.68
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Solution
The fourth proportional to 128,024.92, 176,673.12 and 70,664.68 is: 97,516.56
Step by Step Solution
- Step 1: Write the proportion equation
128,024.92 : 176,673.12 = 70,664.68 : x - Step 2: Convert to fraction form
128,024.92/176,673.12 = 70,664.68/x - Step 3: Cross multiply
128,024.92x = 176,673.12 × 70,664.68 - Step 4: Simplify right side
128,024.92x = 12,484,549,489.40 - Step 5: Solve for x
x = 12,484,549,489.40/128,024.92 - Step 6: Final answer
x = 97,516.56
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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.