Finding the Fourth Proportional to 122,306.05, 183,459.08 and 86,876.65
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Solution
The fourth proportional to 122,306.05, 183,459.08 and 86,876.65 is: 130,314.98
Step by Step Solution
- Step 1: Write the proportion equation
122,306.05 : 183,459.08 = 86,876.65 : x - Step 2: Convert to fraction form
122,306.05/183,459.08 = 86,876.65/x - Step 3: Cross multiply
122,306.05x = 183,459.08 × 86,876.65 - Step 4: Simplify right side
122,306.05x = 15,938,309,848.10 - Step 5: Solve for x
x = 15,938,309,848.10/122,306.05 - Step 6: Final answer
x = 130,314.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.