Finding the Fourth Proportional to 146,031.84, 201,523.95 and 78,963.84
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Solution
The fourth proportional to 146,031.84, 201,523.95 and 78,963.84 is: 108,970.11
Step by Step Solution
- Step 1: Write the proportion equation
146,031.84 : 201,523.95 = 78,963.84 : x - Step 2: Convert to fraction form
146,031.84/201,523.95 = 78,963.84/x - Step 3: Cross multiply
146,031.84x = 201,523.95 × 78,963.84 - Step 4: Simplify right side
146,031.84x = 15,913,104,943.97 - Step 5: Solve for x
x = 15,913,104,943.97/146,031.84 - Step 6: Final answer
x = 108,970.11
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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.