Finding the Fourth Proportional to 127,904.08, 176,509.20 and 74,191.36
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Solution
The fourth proportional to 127,904.08, 176,509.20 and 74,191.36 is: 102,384.99
Step by Step Solution
- Step 1: Write the proportion equation
127,904.08 : 176,509.20 = 74,191.36 : x - Step 2: Convert to fraction form
127,904.08/176,509.20 = 74,191.36/x - Step 3: Cross multiply
127,904.08x = 176,509.20 × 74,191.36 - Step 4: Simplify right side
127,904.08x = 13,095,457,600.51 - Step 5: Solve for x
x = 13,095,457,600.51/127,904.08 - Step 6: Final answer
x = 102,384.99
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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.