Finding the Fourth Proportional to 98,132.08, 135,421.88 and 55,105.59
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Solution
The fourth proportional to 98,132.08, 135,421.88 and 55,105.59 is: 76,045.49
Step by Step Solution
- Step 1: Write the proportion equation
98,132.08 : 135,421.88 = 55,105.59 : x - Step 2: Convert to fraction form
98,132.08/135,421.88 = 55,105.59/x - Step 3: Cross multiply
98,132.08x = 135,421.88 × 55,105.59 - Step 4: Simplify right side
98,132.08x = 7,462,501,919.20 - Step 5: Solve for x
x = 7,462,501,919.20/98,132.08 - Step 6: Final answer
x = 76,045.49
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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.