Finding the Fourth Proportional to 98,122.19, 135,373.19 and 55,656.12
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Solution
The fourth proportional to 98,122.19, 135,373.19 and 55,656.12 is: 76,785.35
Step by Step Solution
- Step 1: Write the proportion equation
98,122.19 : 135,373.19 = 55,656.12 : x - Step 2: Convert to fraction form
98,122.19/135,373.19 = 55,656.12/x - Step 3: Cross multiply
98,122.19x = 135,373.19 × 55,656.12 - Step 4: Simplify right side
98,122.19x = 7,534,346,646.56 - Step 5: Solve for x
x = 7,534,346,646.56/98,122.19 - Step 6: Final answer
x = 76,785.35
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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.