Finding the Fourth Proportional to 127,356.56, 175,753.12 and 79,637.58
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Solution
The fourth proportional to 127,356.56, 175,753.12 and 79,637.58 is: 109,900.53
Step by Step Solution
- Step 1: Write the proportion equation
127,356.56 : 175,753.12 = 79,637.58 : x - Step 2: Convert to fraction form
127,356.56/175,753.12 = 79,637.58/x - Step 3: Cross multiply
127,356.56x = 175,753.12 × 79,637.58 - Step 4: Simplify right side
127,356.56x = 13,996,553,154.25 - Step 5: Solve for x
x = 13,996,553,154.25/127,356.56 - Step 6: Final answer
x = 109,900.53
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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.