Finding the Fourth Proportional to 119,008.51, 164,242.38 and 65,303.99
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Solution
The fourth proportional to 119,008.51, 164,242.38 and 65,303.99 is: 90,125.34
Step by Step Solution
- Step 1: Write the proportion equation
119,008.51 : 164,242.38 = 65,303.99 : x - Step 2: Convert to fraction form
119,008.51/164,242.38 = 65,303.99/x - Step 3: Cross multiply
119,008.51x = 164,242.38 × 65,303.99 - Step 4: Simplify right side
119,008.51x = 10,725,682,780.68 - Step 5: Solve for x
x = 10,725,682,780.68/119,008.51 - Step 6: Final answer
x = 90,125.34
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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.