Finding the Fourth Proportional to 98,215.14, 135,536.87 and 53,503.14
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Solution
The fourth proportional to 98,215.14, 135,536.87 and 53,503.14 is: 73,834.32
Step by Step Solution
- Step 1: Write the proportion equation
98,215.14 : 135,536.87 = 53,503.14 : x - Step 2: Convert to fraction form
98,215.14/135,536.87 = 53,503.14/x - Step 3: Cross multiply
98,215.14x = 135,536.87 × 53,503.14 - Step 4: Simplify right side
98,215.14x = 7,251,648,130.77 - Step 5: Solve for x
x = 7,251,648,130.77/98,215.14 - Step 6: Final answer
x = 73,834.32
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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.