Finding the Fourth Proportional to 124,291.80, 186,437.70 and 54,307.80
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Solution
The fourth proportional to 124,291.80, 186,437.70 and 54,307.80 is: 81,461.70
Step by Step Solution
- Step 1: Write the proportion equation
124,291.80 : 186,437.70 = 54,307.80 : x - Step 2: Convert to fraction form
124,291.80/186,437.70 = 54,307.80/x - Step 3: Cross multiply
124,291.80x = 186,437.70 × 54,307.80 - Step 4: Simplify right side
124,291.80x = 10,125,021,324.06 - Step 5: Solve for x
x = 10,125,021,324.06/124,291.80 - Step 6: Final answer
x = 81,461.70
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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.