Finding the Fourth Proportional to 99,103.09, 136,762.35 and 53,781.07
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Solution
The fourth proportional to 99,103.09, 136,762.35 and 53,781.07 is: 74,217.92
Step by Step Solution
- Step 1: Write the proportion equation
99,103.09 : 136,762.35 = 53,781.07 : x - Step 2: Convert to fraction form
99,103.09/136,762.35 = 53,781.07/x - Step 3: Cross multiply
99,103.09x = 136,762.35 × 53,781.07 - Step 4: Simplify right side
99,103.09x = 7,355,225,518.71 - Step 5: Solve for x
x = 7,355,225,518.71/99,103.09 - Step 6: Final answer
x = 74,217.92
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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.