Finding the Fourth Proportional to 157,119.23, 216,824.58 and 85,497.71
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Solution
The fourth proportional to 157,119.23, 216,824.58 and 85,497.71 is: 117,986.85
Step by Step Solution
- Step 1: Write the proportion equation
157,119.23 : 216,824.58 = 85,497.71 : x - Step 2: Convert to fraction form
157,119.23/216,824.58 = 85,497.71/x - Step 3: Cross multiply
157,119.23x = 216,824.58 × 85,497.71 - Step 4: Simplify right side
157,119.23x = 18,538,003,977.59 - Step 5: Solve for x
x = 18,538,003,977.59/157,119.23 - Step 6: Final answer
x = 117,986.85
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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.