Finding the Fourth Proportional to 139,547.41, 192,593.81 and 135,747.65
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Solution
The fourth proportional to 139,547.41, 192,593.81 and 135,747.65 is: 187,349.65
Step by Step Solution
- Step 1: Write the proportion equation
139,547.41 : 192,593.81 = 135,747.65 : x - Step 2: Convert to fraction form
139,547.41/192,593.81 = 135,747.65/x - Step 3: Cross multiply
139,547.41x = 192,593.81 × 135,747.65 - Step 4: Simplify right side
139,547.41x = 26,144,157,932.90 - Step 5: Solve for x
x = 26,144,157,932.90/139,547.41 - Step 6: Final answer
x = 187,349.65
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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.