Finding the Fourth Proportional to 107,808.36, 148,775.48 and 62,512.70
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Solution
The fourth proportional to 107,808.36, 148,775.48 and 62,512.70 is: 86,267.49
Step by Step Solution
- Step 1: Write the proportion equation
107,808.36 : 148,775.48 = 62,512.70 : x - Step 2: Convert to fraction form
107,808.36/148,775.48 = 62,512.70/x - Step 3: Cross multiply
107,808.36x = 148,775.48 × 62,512.70 - Step 4: Simplify right side
107,808.36x = 9,300,356,126.58 - Step 5: Solve for x
x = 9,300,356,126.58/107,808.36 - Step 6: Final answer
x = 86,267.49
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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.