Finding the Fourth Proportional to 98,701.62, 136,207.62 and 56,259.65
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Solution
The fourth proportional to 98,701.62, 136,207.62 and 56,259.65 is: 77,637.96
Step by Step Solution
- Step 1: Write the proportion equation
98,701.62 : 136,207.62 = 56,259.65 : x - Step 2: Convert to fraction form
98,701.62/136,207.62 = 56,259.65/x - Step 3: Cross multiply
98,701.62x = 136,207.62 × 56,259.65 - Step 4: Simplify right side
98,701.62x = 7,662,992,347.49 - Step 5: Solve for x
x = 7,662,992,347.49/98,701.62 - Step 6: Final answer
x = 77,637.96
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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.