Finding the Fourth Proportional to 130,449.78, 195,730.36 and 55,605.14
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Solution
The fourth proportional to 130,449.78, 195,730.36 and 55,605.14 is: 83,431.45
Step by Step Solution
- Step 1: Write the proportion equation
130,449.78 : 195,730.36 = 55,605.14 : x - Step 2: Convert to fraction form
130,449.78/195,730.36 = 55,605.14/x - Step 3: Cross multiply
130,449.78x = 195,730.36 × 55,605.14 - Step 4: Simplify right side
130,449.78x = 10,883,614,070.05 - Step 5: Solve for x
x = 10,883,614,070.05/130,449.78 - Step 6: Final answer
x = 83,431.45
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1.5x scale
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.