Finding the Fourth Proportional to 119,309.19, 164,646.79 and 65,595.12
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Solution
The fourth proportional to 119,309.19, 164,646.79 and 65,595.12 is: 90,521.32
Step by Step Solution
- Step 1: Write the proportion equation
119,309.19 : 164,646.79 = 65,595.12 : x - Step 2: Convert to fraction form
119,309.19/164,646.79 = 65,595.12/x - Step 3: Cross multiply
119,309.19x = 164,646.79 × 65,595.12 - Step 4: Simplify right side
119,309.19x = 10,800,025,947.66 - Step 5: Solve for x
x = 10,800,025,947.66/119,309.19 - Step 6: Final answer
x = 90,521.32
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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.