Finding the Fourth Proportional to 145,954.06, 201,416.50 and 78,886.06
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Solution
The fourth proportional to 145,954.06, 201,416.50 and 78,886.06 is: 108,862.71
Step by Step Solution
- Step 1: Write the proportion equation
145,954.06 : 201,416.50 = 78,886.06 : x - Step 2: Convert to fraction form
145,954.06/201,416.50 = 78,886.06/x - Step 3: Cross multiply
145,954.06x = 201,416.50 × 78,886.06 - Step 4: Simplify right side
145,954.06x = 15,888,954,103.99 - Step 5: Solve for x
x = 15,888,954,103.99/145,954.06 - Step 6: Final answer
x = 108,862.71
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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.