Finding the Fourth Proportional to 147,389.99, 203,340.44 and 90,702.95
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Solution
The fourth proportional to 147,389.99, 203,340.44 and 90,702.95 is: 125,134.53
Step by Step Solution
- Step 1: Write the proportion equation
147,389.99 : 203,340.44 = 90,702.95 : x - Step 2: Convert to fraction form
147,389.99/203,340.44 = 90,702.95/x - Step 3: Cross multiply
147,389.99x = 203,340.44 × 90,702.95 - Step 4: Simplify right side
147,389.99x = 18,443,577,762.30 - Step 5: Solve for x
x = 18,443,577,762.30/147,389.99 - Step 6: Final answer
x = 125,134.53
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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.