Finding the Fourth Proportional to 97,984.58, 135,220.14 and 73,411.82
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Solution
The fourth proportional to 97,984.58, 135,220.14 and 73,411.82 is: 101,309.38
Step by Step Solution
- Step 1: Write the proportion equation
97,984.58 : 135,220.14 = 73,411.82 : x - Step 2: Convert to fraction form
97,984.58/135,220.14 = 73,411.82/x - Step 3: Cross multiply
97,984.58x = 135,220.14 × 73,411.82 - Step 4: Simplify right side
97,984.58x = 9,926,756,578.05 - Step 5: Solve for x
x = 9,926,756,578.05/97,984.58 - Step 6: Final answer
x = 101,309.38
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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.