Finding the Fourth Proportional to 176,341.05, 243,378.14 and 99,864.09
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Solution
The fourth proportional to 176,341.05, 243,378.14 and 99,864.09 is: 137,828.01
Step by Step Solution
- Step 1: Write the proportion equation
176,341.05 : 243,378.14 = 99,864.09 : x - Step 2: Convert to fraction form
176,341.05/243,378.14 = 99,864.09/x - Step 3: Cross multiply
176,341.05x = 243,378.14 × 99,864.09 - Step 4: Simplify right side
176,341.05x = 24,304,735,977.67 - Step 5: Solve for x
x = 24,304,735,977.67/176,341.05 - Step 6: Final answer
x = 137,828.01
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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.