Finding the Fourth Proportional to 97,308.20, 145,854.30 and 38,124.20
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Solution
The fourth proportional to 97,308.20, 145,854.30 and 38,124.20 is: 57,143.99
Step by Step Solution
- Step 1: Write the proportion equation
97,308.20 : 145,854.30 = 38,124.20 : x - Step 2: Convert to fraction form
97,308.20/145,854.30 = 38,124.20/x - Step 3: Cross multiply
97,308.20x = 145,854.30 × 38,124.20 - Step 4: Simplify right side
97,308.20x = 5,560,578,504.06 - Step 5: Solve for x
x = 5,560,578,504.06/97,308.20 - Step 6: Final answer
x = 57,143.99
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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.