Finding the Fourth Proportional to 106,901.84, 160,305.36 and 56,972.64
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Solution
The fourth proportional to 106,901.84, 160,305.36 and 56,972.64 is: 85,433.70
Step by Step Solution
- Step 1: Write the proportion equation
106,901.84 : 160,305.36 = 56,972.64 : x - Step 2: Convert to fraction form
106,901.84/160,305.36 = 56,972.64/x - Step 3: Cross multiply
106,901.84x = 160,305.36 × 56,972.64 - Step 4: Simplify right side
106,901.84x = 9,133,019,565.35 - Step 5: Solve for x
x = 9,133,019,565.35/106,901.84 - Step 6: Final answer
x = 85,433.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.