Finding the Fourth Proportional to 98,926.08, 136,516.80 and 53,603.84
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Solution
The fourth proportional to 98,926.08, 136,516.80 and 53,603.84 is: 73,972.65
Step by Step Solution
- Step 1: Write the proportion equation
98,926.08 : 136,516.80 = 53,603.84 : x - Step 2: Convert to fraction form
98,926.08/136,516.80 = 53,603.84/x - Step 3: Cross multiply
98,926.08x = 136,516.80 × 53,603.84 - Step 4: Simplify right side
98,926.08x = 7,317,824,704.51 - Step 5: Solve for x
x = 7,317,824,704.51/98,926.08 - Step 6: Final answer
x = 73,972.65
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1.5x scale
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.