Finding the Fourth Proportional to 134,469.30, 201,703.95 and 128,345.70
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Solution
The fourth proportional to 134,469.30, 201,703.95 and 128,345.70 is: 192,518.55
Step by Step Solution
- Step 1: Write the proportion equation
134,469.30 : 201,703.95 = 128,345.70 : x - Step 2: Convert to fraction form
134,469.30/201,703.95 = 128,345.70/x - Step 3: Cross multiply
134,469.30x = 201,703.95 × 128,345.70 - Step 4: Simplify right side
134,469.30x = 25,887,834,655.52 - Step 5: Solve for x
x = 25,887,834,655.52/134,469.30 - Step 6: Final answer
x = 192,518.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.