Finding the Fourth Proportional to 106,455.06, 146,904.84 and 58,708.40
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Solution
The fourth proportional to 106,455.06, 146,904.84 and 58,708.40 is: 81,015.85
Step by Step Solution
- Step 1: Write the proportion equation
106,455.06 : 146,904.84 = 58,708.40 : x - Step 2: Convert to fraction form
106,455.06/146,904.84 = 58,708.40/x - Step 3: Cross multiply
106,455.06x = 146,904.84 × 58,708.40 - Step 4: Simplify right side
106,455.06x = 8,624,547,374.13 - Step 5: Solve for x
x = 8,624,547,374.13/106,455.06 - Step 6: Final answer
x = 81,015.85
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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.