Finding the Fourth Proportional to 180,939.52, 249,726.43 and 100,392.99
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Solution
The fourth proportional to 180,939.52, 249,726.43 and 100,392.99 is: 138,558.92
Step by Step Solution
- Step 1: Write the proportion equation
180,939.52 : 249,726.43 = 100,392.99 : x - Step 2: Convert to fraction form
180,939.52/249,726.43 = 100,392.99/x - Step 3: Cross multiply
180,939.52x = 249,726.43 × 100,392.99 - Step 4: Simplify right side
180,939.52x = 25,070,784,356.40 - Step 5: Solve for x
x = 25,070,784,356.40/180,939.52 - Step 6: Final answer
x = 138,558.92
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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.