Finding the Fourth Proportional to 138,869.14, 191,496.09 and 118,792.48
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Solution
The fourth proportional to 138,869.14, 191,496.09 and 118,792.48 is: 163,811.02
Step by Step Solution
- Step 1: Write the proportion equation
138,869.14 : 191,496.09 = 118,792.48 : x - Step 2: Convert to fraction form
138,869.14/191,496.09 = 118,792.48/x - Step 3: Cross multiply
138,869.14x = 191,496.09 × 118,792.48 - Step 4: Simplify right side
138,869.14x = 22,748,295,441.40 - Step 5: Solve for x
x = 22,748,295,441.40/138,869.14 - Step 6: Final answer
x = 163,811.02
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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.