Finding the Fourth Proportional to 145,998.60, 201,447.99 and 83,897.08
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Solution
The fourth proportional to 145,998.60, 201,447.99 and 83,897.08 is: 115,760.69
Step by Step Solution
- Step 1: Write the proportion equation
145,998.60 : 201,447.99 = 83,897.08 : x - Step 2: Convert to fraction form
145,998.60/201,447.99 = 83,897.08/x - Step 3: Cross multiply
145,998.60x = 201,447.99 × 83,897.08 - Step 4: Simplify right side
145,998.60x = 16,900,898,132.87 - Step 5: Solve for x
x = 16,900,898,132.87/145,998.60 - Step 6: Final answer
x = 115,760.69
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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.