Finding the Fourth Proportional to 106,937.68, 147,606.86 and 61,645.96
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Solution
The fourth proportional to 106,937.68, 147,606.86 and 61,645.96 is: 85,090.37
Step by Step Solution
- Step 1: Write the proportion equation
106,937.68 : 147,606.86 = 61,645.96 : x - Step 2: Convert to fraction form
106,937.68/147,606.86 = 61,645.96/x - Step 3: Cross multiply
106,937.68x = 147,606.86 × 61,645.96 - Step 4: Simplify right side
106,937.68x = 9,099,366,587.29 - Step 5: Solve for x
x = 9,099,366,587.29/106,937.68 - Step 6: Final answer
x = 85,090.37
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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.