Finding the Fourth Proportional to 128,254.66, 176,991.06 and 71,666.08
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Solution
The fourth proportional to 128,254.66, 176,991.06 and 71,666.08 is: 98,898.98
Step by Step Solution
- Step 1: Write the proportion equation
128,254.66 : 176,991.06 = 71,666.08 : x - Step 2: Convert to fraction form
128,254.66/176,991.06 = 71,666.08/x - Step 3: Cross multiply
128,254.66x = 176,991.06 × 71,666.08 - Step 4: Simplify right side
128,254.66x = 12,684,255,465.24 - Step 5: Solve for x
x = 12,684,255,465.24/128,254.66 - Step 6: Final answer
x = 98,898.98
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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.