Finding the Fourth Proportional to 156,484.68, 215,948.96 and 84,864.68
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Solution
The fourth proportional to 156,484.68, 215,948.96 and 84,864.68 is: 117,113.31
Step by Step Solution
- Step 1: Write the proportion equation
156,484.68 : 215,948.96 = 84,864.68 : x - Step 2: Convert to fraction form
156,484.68/215,948.96 = 84,864.68/x - Step 3: Cross multiply
156,484.68x = 215,948.96 × 84,864.68 - Step 4: Simplify right side
156,484.68x = 18,326,439,386.73 - Step 5: Solve for x
x = 18,326,439,386.73/156,484.68 - Step 6: Final answer
x = 117,113.31
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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.