Finding the Fourth Proportional to 135,528.04, 187,035.24 and 81,812.08
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Solution
The fourth proportional to 135,528.04, 187,035.24 and 81,812.08 is: 112,904.62
Step by Step Solution
- Step 1: Write the proportion equation
135,528.04 : 187,035.24 = 81,812.08 : x - Step 2: Convert to fraction form
135,528.04/187,035.24 = 81,812.08/x - Step 3: Cross multiply
135,528.04x = 187,035.24 × 81,812.08 - Step 4: Simplify right side
135,528.04x = 15,301,742,017.70 - Step 5: Solve for x
x = 15,301,742,017.70/135,528.04 - Step 6: Final answer
x = 112,904.62
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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.