Finding the Fourth Proportional to 97,673.64, 147,242.55 and 91,163.63
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Solution
The fourth proportional to 97,673.64, 147,242.55 and 91,163.63 is: 137,428.75
Step by Step Solution
- Step 1: Write the proportion equation
97,673.64 : 147,242.55 = 91,163.63 : x - Step 2: Convert to fraction form
97,673.64/147,242.55 = 91,163.63/x - Step 3: Cross multiply
97,673.64x = 147,242.55 × 91,163.63 - Step 4: Simplify right side
97,673.64x = 13,423,166,058.43 - Step 5: Solve for x
x = 13,423,166,058.43/97,673.64 - Step 6: Final answer
x = 137,428.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.