Finding the Fourth Proportional to 134,763.80, 202,312.10 and 84,843.80
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Solution
The fourth proportional to 134,763.80, 202,312.10 and 84,843.80 is: 127,370.46
Step by Step Solution
- Step 1: Write the proportion equation
134,763.80 : 202,312.10 = 84,843.80 : x - Step 2: Convert to fraction form
134,763.80/202,312.10 = 84,843.80/x - Step 3: Cross multiply
134,763.80x = 202,312.10 × 84,843.80 - Step 4: Simplify right side
134,763.80x = 17,164,927,349.98 - Step 5: Solve for x
x = 17,164,927,349.98/134,763.80 - Step 6: Final answer
x = 127,370.46
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1.5x scale
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.