Finding the Fourth Proportional to 145,983.47, 201,457.35 and 85,542.08
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Solution
The fourth proportional to 145,983.47, 201,457.35 and 85,542.08 is: 118,048.17
Step by Step Solution
- Step 1: Write the proportion equation
145,983.47 : 201,457.35 = 85,542.08 : x - Step 2: Convert to fraction form
145,983.47/201,457.35 = 85,542.08/x - Step 3: Cross multiply
145,983.47x = 201,457.35 × 85,542.08 - Step 4: Simplify right side
145,983.47x = 17,233,081,253.93 - Step 5: Solve for x
x = 17,233,081,253.93/145,983.47 - Step 6: Final answer
x = 118,048.17
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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.