Finding the Fourth Proportional to 110,912.52, 153,130.80 and 98,955.09
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Solution
The fourth proportional to 110,912.52, 153,130.80 and 98,955.09 is: 136,621.84
Step by Step Solution
- Step 1: Write the proportion equation
110,912.52 : 153,130.80 = 98,955.09 : x - Step 2: Convert to fraction form
110,912.52/153,130.80 = 98,955.09/x - Step 3: Cross multiply
110,912.52x = 153,130.80 × 98,955.09 - Step 4: Simplify right side
110,912.52x = 15,153,072,095.77 - Step 5: Solve for x
x = 15,153,072,095.77/110,912.52 - Step 6: Final answer
x = 136,621.84
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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.