Finding the Fourth Proportional to 127,730.49, 176,434.52 and 103,621.07
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Solution
The fourth proportional to 127,730.49, 176,434.52 and 103,621.07 is: 143,132.09
Step by Step Solution
- Step 1: Write the proportion equation
127,730.49 : 176,434.52 = 103,621.07 : x - Step 2: Convert to fraction form
127,730.49/176,434.52 = 103,621.07/x - Step 3: Cross multiply
127,730.49x = 176,434.52 × 103,621.07 - Step 4: Simplify right side
127,730.49x = 18,282,332,347.06 - Step 5: Solve for x
x = 18,282,332,347.06/127,730.49 - Step 6: Final answer
x = 143,132.09
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1.5x scale
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.