Finding the Fourth Proportional to 158,801.99, 219,133.67 and 87,179.54
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Solution
The fourth proportional to 158,801.99, 219,133.67 and 87,179.54 is: 120,300.58
Step by Step Solution
- Step 1: Write the proportion equation
158,801.99 : 219,133.67 = 87,179.54 : x - Step 2: Convert to fraction form
158,801.99/219,133.67 = 87,179.54/x - Step 3: Cross multiply
158,801.99x = 219,133.67 × 87,179.54 - Step 4: Simplify right side
158,801.99x = 19,103,971,017.55 - Step 5: Solve for x
x = 19,103,971,017.55/158,801.99 - Step 6: Final answer
x = 120,300.58
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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.