Finding the Fourth Proportional to 106,459.42, 146,955.99 and 64,009.75
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Solution
The fourth proportional to 106,459.42, 146,955.99 and 64,009.75 is: 88,358.70
Step by Step Solution
- Step 1: Write the proportion equation
106,459.42 : 146,955.99 = 64,009.75 : x - Step 2: Convert to fraction form
106,459.42/146,955.99 = 64,009.75/x - Step 3: Cross multiply
106,459.42x = 146,955.99 × 64,009.75 - Step 4: Simplify right side
106,459.42x = 9,406,616,180.90 - Step 5: Solve for x
x = 9,406,616,180.90/106,459.42 - Step 6: Final answer
x = 88,358.70
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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.