Finding the Fourth Proportional to 135,534.70, 187,038.99 and 75,106.35
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Solution
The fourth proportional to 135,534.70, 187,038.99 and 75,106.35 is: 103,647.38
Step by Step Solution
- Step 1: Write the proportion equation
135,534.70 : 187,038.99 = 75,106.35 : x - Step 2: Convert to fraction form
135,534.70/187,038.99 = 75,106.35/x - Step 3: Cross multiply
135,534.70x = 187,038.99 × 75,106.35 - Step 4: Simplify right side
135,534.70x = 14,047,815,471.05 - Step 5: Solve for x
x = 14,047,815,471.05/135,534.70 - Step 6: Final answer
x = 103,647.38
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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.