Finding the Fourth Proportional to 97,089.84, 133,968.33 and 61,299.18
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Solution
The fourth proportional to 97,089.84, 133,968.33 and 61,299.18 is: 84,582.99
Step by Step Solution
- Step 1: Write the proportion equation
97,089.84 : 133,968.33 = 61,299.18 : x - Step 2: Convert to fraction form
97,089.84/133,968.33 = 61,299.18/x - Step 3: Cross multiply
97,089.84x = 133,968.33 × 61,299.18 - Step 4: Simplify right side
97,089.84x = 8,212,148,774.97 - Step 5: Solve for x
x = 8,212,148,774.97/97,089.84 - Step 6: Final answer
x = 84,582.99
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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.