Finding the Fourth Proportional to 135,615.14, 187,159.98 and 75,204.74
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Solution
The fourth proportional to 135,615.14, 187,159.98 and 75,204.74 is: 103,788.69
Step by Step Solution
- Step 1: Write the proportion equation
135,615.14 : 187,159.98 = 75,204.74 : x - Step 2: Convert to fraction form
135,615.14/187,159.98 = 75,204.74/x - Step 3: Cross multiply
135,615.14x = 187,159.98 × 75,204.74 - Step 4: Simplify right side
135,615.14x = 14,075,317,634.31 - Step 5: Solve for x
x = 14,075,317,634.31/135,615.14 - Step 6: Final answer
x = 103,788.69
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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.