Finding the Fourth Proportional to 169,417.28, 233,823.84 and 93,990.08
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Solution
The fourth proportional to 169,417.28, 233,823.84 and 93,990.08 is: 129,721.84
Step by Step Solution
- Step 1: Write the proportion equation
169,417.28 : 233,823.84 = 93,990.08 : x - Step 2: Convert to fraction form
169,417.28/233,823.84 = 93,990.08/x - Step 3: Cross multiply
169,417.28x = 233,823.84 × 93,990.08 - Step 4: Simplify right side
169,417.28x = 21,977,121,427.51 - Step 5: Solve for x
x = 21,977,121,427.51/169,417.28 - Step 6: Final answer
x = 129,721.84
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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.