Finding the Fourth Proportional to 126,315.84, 174,372.54 and 83,320.68
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Solution
The fourth proportional to 126,315.84, 174,372.54 and 83,320.68 is: 115,019.93
Step by Step Solution
- Step 1: Write the proportion equation
126,315.84 : 174,372.54 = 83,320.68 : x - Step 2: Convert to fraction form
126,315.84/174,372.54 = 83,320.68/x - Step 3: Cross multiply
126,315.84x = 174,372.54 × 83,320.68 - Step 4: Simplify right side
126,315.84x = 14,528,838,606.13 - Step 5: Solve for x
x = 14,528,838,606.13/126,315.84 - Step 6: Final answer
x = 115,019.93
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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.