Finding the Fourth Proportional to 135,903.08, 187,554.93 and 75,473.71
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Solution
The fourth proportional to 135,903.08, 187,554.93 and 75,473.71 is: 104,158.53
Step by Step Solution
- Step 1: Write the proportion equation
135,903.08 : 187,554.93 = 75,473.71 : x - Step 2: Convert to fraction form
135,903.08/187,554.93 = 75,473.71/x - Step 3: Cross multiply
135,903.08x = 187,554.93 × 75,473.71 - Step 4: Simplify right side
135,903.08x = 14,155,465,080.75 - Step 5: Solve for x
x = 14,155,465,080.75/135,903.08 - Step 6: Final answer
x = 104,158.53
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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.