Finding the Fourth Proportional to 127,145.98, 175,465.47 and 73,430.02
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Solution
The fourth proportional to 127,145.98, 175,465.47 and 73,430.02 is: 101,335.75
Step by Step Solution
- Step 1: Write the proportion equation
127,145.98 : 175,465.47 = 73,430.02 : x - Step 2: Convert to fraction form
127,145.98/175,465.47 = 73,430.02/x - Step 3: Cross multiply
127,145.98x = 175,465.47 × 73,430.02 - Step 4: Simplify right side
127,145.98x = 12,884,432,971.41 - Step 5: Solve for x
x = 12,884,432,971.41/127,145.98 - Step 6: Final answer
x = 101,335.75
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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.