Finding the Fourth Proportional to 112,304.13, 168,177.95 and 87,134.19
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Solution
The fourth proportional to 112,304.13, 168,177.95 and 87,134.19 is: 130,485.40
Step by Step Solution
- Step 1: Write the proportion equation
112,304.13 : 168,177.95 = 87,134.19 : x - Step 2: Convert to fraction form
112,304.13/168,177.95 = 87,134.19/x - Step 3: Cross multiply
112,304.13x = 168,177.95 × 87,134.19 - Step 4: Simplify right side
112,304.13x = 14,654,049,449.11 - Step 5: Solve for x
x = 14,654,049,449.11/112,304.13 - Step 6: Final answer
x = 130,485.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.