Finding the Fourth Proportional to 105,315.84, 145,351.68 and 60,595.20
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Solution
The fourth proportional to 105,315.84, 145,351.68 and 60,595.20 is: 83,630.48
Step by Step Solution
- Step 1: Write the proportion equation
105,315.84 : 145,351.68 = 60,595.20 : x - Step 2: Convert to fraction form
105,315.84/145,351.68 = 60,595.20/x - Step 3: Cross multiply
105,315.84x = 145,351.68 × 60,595.20 - Step 4: Simplify right side
105,315.84x = 8,807,614,119.94 - Step 5: Solve for x
x = 8,807,614,119.94/105,315.84 - Step 6: Final answer
x = 83,630.48
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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.