Finding the Fourth Proportional to 99,176.04, 136,859.40 and 53,853.09
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Solution
The fourth proportional to 99,176.04, 136,859.40 and 53,853.09 is: 74,315.34
Step by Step Solution
- Step 1: Write the proportion equation
99,176.04 : 136,859.40 = 53,853.09 : x - Step 2: Convert to fraction form
99,176.04/136,859.40 = 53,853.09/x - Step 3: Cross multiply
99,176.04x = 136,859.40 × 53,853.09 - Step 4: Simplify right side
99,176.04x = 7,370,301,585.55 - Step 5: Solve for x
x = 7,370,301,585.55/99,176.04 - Step 6: Final answer
x = 74,315.34
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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.