Finding the Fourth Proportional to 147,033.68, 202,900.40 and 86,606.80
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Solution
The fourth proportional to 147,033.68, 202,900.40 and 86,606.80 is: 119,513.80
Step by Step Solution
- Step 1: Write the proportion equation
147,033.68 : 202,900.40 = 86,606.80 : x - Step 2: Convert to fraction form
147,033.68/202,900.40 = 86,606.80/x - Step 3: Cross multiply
147,033.68x = 202,900.40 × 86,606.80 - Step 4: Simplify right side
147,033.68x = 17,572,554,362.72 - Step 5: Solve for x
x = 17,572,554,362.72/147,033.68 - Step 6: Final answer
x = 119,513.80
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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.