Finding the Fourth Proportional to 156,866.26, 216,365.97 and 103,134.10
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Solution
The fourth proportional to 156,866.26, 216,365.97 and 103,134.10 is: 142,253.09
Step by Step Solution
- Step 1: Write the proportion equation
156,866.26 : 216,365.97 = 103,134.10 : x - Step 2: Convert to fraction form
156,866.26/216,365.97 = 103,134.10/x - Step 3: Cross multiply
156,866.26x = 216,365.97 × 103,134.10 - Step 4: Simplify right side
156,866.26x = 22,314,709,586.58 - Step 5: Solve for x
x = 22,314,709,586.58/156,866.26 - Step 6: Final answer
x = 142,253.09
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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.