Finding the Fourth Proportional to 157,415.07, 236,053.12 and 45,069.79
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Solution
The fourth proportional to 157,415.07, 236,053.12 and 45,069.79 is: 67,584.79
Step by Step Solution
- Step 1: Write the proportion equation
157,415.07 : 236,053.12 = 45,069.79 : x - Step 2: Convert to fraction form
157,415.07/236,053.12 = 45,069.79/x - Step 3: Cross multiply
157,415.07x = 236,053.12 × 45,069.79 - Step 4: Simplify right side
157,415.07x = 10,638,864,547.24 - Step 5: Solve for x
x = 10,638,864,547.24/157,415.07 - Step 6: Final answer
x = 67,584.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.