Finding the Fourth Proportional to 145,903.68, 201,362.58 and 85,525.07
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Solution
The fourth proportional to 145,903.68, 201,362.58 and 85,525.07 is: 118,033.68
Step by Step Solution
- Step 1: Write the proportion equation
145,903.68 : 201,362.58 = 85,525.07 : x - Step 2: Convert to fraction form
145,903.68/201,362.58 = 85,525.07/x - Step 3: Cross multiply
145,903.68x = 201,362.58 × 85,525.07 - Step 4: Simplify right side
145,903.68x = 17,221,547,743.07 - Step 5: Solve for x
x = 17,221,547,743.07/145,903.68 - Step 6: Final answer
x = 118,033.68
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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.