Finding the Fourth Proportional to 145,742.58, 201,217.62 and 118,949.00
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Solution
The fourth proportional to 145,742.58, 201,217.62 and 118,949.00 is: 164,225.40
Step by Step Solution
- Step 1: Write the proportion equation
145,742.58 : 201,217.62 = 118,949.00 : x - Step 2: Convert to fraction form
145,742.58/201,217.62 = 118,949.00/x - Step 3: Cross multiply
145,742.58x = 201,217.62 × 118,949.00 - Step 4: Simplify right side
145,742.58x = 23,934,633,675.29 - Step 5: Solve for x
x = 23,934,633,675.29/145,742.58 - Step 6: Final answer
x = 164,225.40
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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.