Finding the Fourth Proportional to 133,288.19, 183,937.70 and 72,859.08
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Solution
The fourth proportional to 133,288.19, 183,937.70 and 72,859.08 is: 100,545.53
Step by Step Solution
- Step 1: Write the proportion equation
133,288.19 : 183,937.70 = 72,859.08 : x - Step 2: Convert to fraction form
133,288.19/183,937.70 = 72,859.08/x - Step 3: Cross multiply
133,288.19x = 183,937.70 × 72,859.08 - Step 4: Simplify right side
133,288.19x = 13,401,531,599.32 - Step 5: Solve for x
x = 13,401,531,599.32/133,288.19 - Step 6: Final answer
x = 100,545.53
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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.