Finding the Fourth Proportional to 107,430.05, 148,151.84 and 70,571.19
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Solution
The fourth proportional to 107,430.05, 148,151.84 and 70,571.19 is: 97,321.48
Step by Step Solution
- Step 1: Write the proportion equation
107,430.05 : 148,151.84 = 70,571.19 : x - Step 2: Convert to fraction form
107,430.05/148,151.84 = 70,571.19/x - Step 3: Cross multiply
107,430.05x = 148,151.84 × 70,571.19 - Step 4: Simplify right side
107,430.05x = 10,455,251,801.27 - Step 5: Solve for x
x = 10,455,251,801.27/107,430.05 - Step 6: Final answer
x = 97,321.48
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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.