Finding the Fourth Proportional to 145,970.08, 201,438.58 and 78,902.08
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Solution
The fourth proportional to 145,970.08, 201,438.58 and 78,902.08 is: 108,884.80
Step by Step Solution
- Step 1: Write the proportion equation
145,970.08 : 201,438.58 = 78,902.08 : x - Step 2: Convert to fraction form
145,970.08/201,438.58 = 78,902.08/x - Step 3: Cross multiply
145,970.08x = 201,438.58 × 78,902.08 - Step 4: Simplify right side
145,970.08x = 15,893,922,954.25 - Step 5: Solve for x
x = 15,893,922,954.25/145,970.08 - Step 6: Final answer
x = 108,884.80
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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.