Finding the Fourth Proportional to 83,449.08, 115,121.13 and 73,898.70
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Solution
The fourth proportional to 83,449.08, 115,121.13 and 73,898.70 is: 101,946.02
Step by Step Solution
- Step 1: Write the proportion equation
83,449.08 : 115,121.13 = 73,898.70 : x - Step 2: Convert to fraction form
83,449.08/115,121.13 = 73,898.70/x - Step 3: Cross multiply
83,449.08x = 115,121.13 × 73,898.70 - Step 4: Simplify right side
83,449.08x = 8,507,301,849.53 - Step 5: Solve for x
x = 8,507,301,849.53/83,449.08 - Step 6: Final answer
x = 101,946.02
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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.