Finding the Fourth Proportional to 139,799.28, 209,701.35 and 46,307.46
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Solution
The fourth proportional to 139,799.28, 209,701.35 and 46,307.46 is: 69,461.99
Step by Step Solution
- Step 1: Write the proportion equation
139,799.28 : 209,701.35 = 46,307.46 : x - Step 2: Convert to fraction form
139,799.28/209,701.35 = 46,307.46/x - Step 3: Cross multiply
139,799.28x = 209,701.35 × 46,307.46 - Step 4: Simplify right side
139,799.28x = 9,710,736,877.07 - Step 5: Solve for x
x = 9,710,736,877.07/139,799.28 - Step 6: Final answer
x = 69,461.99
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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.