Finding the Fourth Proportional to 98,558.04, 135,850.32 and 77,010.12
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Solution
The fourth proportional to 98,558.04, 135,850.32 and 77,010.12 is: 106,149.12
Step by Step Solution
- Step 1: Write the proportion equation
98,558.04 : 135,850.32 = 77,010.12 : x - Step 2: Convert to fraction form
98,558.04/135,850.32 = 77,010.12/x - Step 3: Cross multiply
98,558.04x = 135,850.32 × 77,010.12 - Step 4: Simplify right side
98,558.04x = 10,461,849,445.24 - Step 5: Solve for x
x = 10,461,849,445.24/98,558.04 - Step 6: Final answer
x = 106,149.12
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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.