Finding the Fourth Proportional to 176,420.15, 243,406.16 and 99,927.09
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Solution
The fourth proportional to 176,420.15, 243,406.16 and 99,927.09 is: 137,869.00
Step by Step Solution
- Step 1: Write the proportion equation
176,420.15 : 243,406.16 = 99,927.09 : x - Step 2: Convert to fraction form
176,420.15/243,406.16 = 99,927.09/x - Step 3: Cross multiply
176,420.15x = 243,406.16 × 99,927.09 - Step 4: Simplify right side
176,420.15x = 24,322,868,757.24 - Step 5: Solve for x
x = 24,322,868,757.24/176,420.15 - Step 6: Final answer
x = 137,869.00
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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.