Finding the Fourth Proportional to 156,605.18, 216,113.28 and 84,984.62
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Solution
The fourth proportional to 156,605.18, 216,113.28 and 84,984.62 is: 117,277.76
Step by Step Solution
- Step 1: Write the proportion equation
156,605.18 : 216,113.28 = 84,984.62 : x - Step 2: Convert to fraction form
156,605.18/216,113.28 = 84,984.62/x - Step 3: Cross multiply
156,605.18x = 216,113.28 × 84,984.62 - Step 4: Simplify right side
156,605.18x = 18,366,304,977.75 - Step 5: Solve for x
x = 18,366,304,977.75/156,605.18 - Step 6: Final answer
x = 117,277.76
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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.