Finding the Fourth Proportional to 118,643.28, 177,946.16 and 39,758.19
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Solution
The fourth proportional to 118,643.28, 177,946.16 and 39,758.19 is: 59,631.00
Step by Step Solution
- Step 1: Write the proportion equation
118,643.28 : 177,946.16 = 39,758.19 : x - Step 2: Convert to fraction form
118,643.28/177,946.16 = 39,758.19/x - Step 3: Cross multiply
118,643.28x = 177,946.16 × 39,758.19 - Step 4: Simplify right side
118,643.28x = 7,074,817,040.26 - Step 5: Solve for x
x = 7,074,817,040.26/118,643.28 - Step 6: Final answer
x = 59,631.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.