Finding the Fourth Proportional to 120,246.13, 165,937.11 and 65,798.08
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Solution
The fourth proportional to 120,246.13, 165,937.11 and 65,798.08 is: 90,799.96
Step by Step Solution
- Step 1: Write the proportion equation
120,246.13 : 165,937.11 = 65,798.08 : x - Step 2: Convert to fraction form
120,246.13/165,937.11 = 65,798.08/x - Step 3: Cross multiply
120,246.13x = 165,937.11 × 65,798.08 - Step 4: Simplify right side
120,246.13x = 10,918,343,238.75 - Step 5: Solve for x
x = 10,918,343,238.75/120,246.13 - Step 6: Final answer
x = 90,799.96
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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.