Finding the Fourth Proportional to 134,483.04, 201,660.18 and 78,339.12
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Solution
The fourth proportional to 134,483.04, 201,660.18 and 78,339.12 is: 117,471.18
Step by Step Solution
- Step 1: Write the proportion equation
134,483.04 : 201,660.18 = 78,339.12 : x - Step 2: Convert to fraction form
134,483.04/201,660.18 = 78,339.12/x - Step 3: Cross multiply
134,483.04x = 201,660.18 × 78,339.12 - Step 4: Simplify right side
134,483.04x = 15,797,881,040.24 - Step 5: Solve for x
x = 15,797,881,040.24/134,483.04 - Step 6: Final answer
x = 117,471.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.