Finding the Fourth Proportional to 122,534.90, 183,911.70 and 105,913.70
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Solution
The fourth proportional to 122,534.90, 183,911.70 and 105,913.70 is: 158,965.07
Step by Step Solution
- Step 1: Write the proportion equation
122,534.90 : 183,911.70 = 105,913.70 : x - Step 2: Convert to fraction form
122,534.90/183,911.70 = 105,913.70/x - Step 3: Cross multiply
122,534.90x = 183,911.70 × 105,913.70 - Step 4: Simplify right side
122,534.90x = 19,478,768,620.29 - Step 5: Solve for x
x = 19,478,768,620.29/122,534.90 - Step 6: Final answer
x = 158,965.07
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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.