Finding the Fourth Proportional to 98,685.42, 136,182.51 and 56,257.62
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Solution
The fourth proportional to 98,685.42, 136,182.51 and 56,257.62 is: 77,633.59
Step by Step Solution
- Step 1: Write the proportion equation
98,685.42 : 136,182.51 = 56,257.62 : x - Step 2: Convert to fraction form
98,685.42/136,182.51 = 56,257.62/x - Step 3: Cross multiply
98,685.42x = 136,182.51 × 56,257.62 - Step 4: Simplify right side
98,685.42x = 7,661,303,898.23 - Step 5: Solve for x
x = 7,661,303,898.23/98,685.42 - Step 6: Final answer
x = 77,633.59
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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.