Finding the Fourth Proportional to 134,705.99, 185,890.21 and 74,276.61
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Solution
The fourth proportional to 134,705.99, 185,890.21 and 74,276.61 is: 102,499.49
Step by Step Solution
- Step 1: Write the proportion equation
134,705.99 : 185,890.21 = 74,276.61 : x - Step 2: Convert to fraction form
134,705.99/185,890.21 = 74,276.61/x - Step 3: Cross multiply
134,705.99x = 185,890.21 × 74,276.61 - Step 4: Simplify right side
134,705.99x = 13,807,294,630.99 - Step 5: Solve for x
x = 13,807,294,630.99/134,705.99 - Step 6: Final answer
x = 102,499.49
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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.