Finding the Fourth Proportional to 149,266.34, 205,989.51 and 84,730.70
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Solution
The fourth proportional to 149,266.34, 205,989.51 and 84,730.70 is: 116,929.49
Step by Step Solution
- Step 1: Write the proportion equation
149,266.34 : 205,989.51 = 84,730.70 : x - Step 2: Convert to fraction form
149,266.34/205,989.51 = 84,730.70/x - Step 3: Cross multiply
149,266.34x = 205,989.51 × 84,730.70 - Step 4: Simplify right side
149,266.34x = 17,453,636,152.20 - Step 5: Solve for x
x = 17,453,636,152.20/149,266.34 - Step 6: Final answer
x = 116,929.49
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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.