Finding the Fourth Proportional to 105,490.34, 145,573.05 and 60,182.99
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Solution
The fourth proportional to 105,490.34, 145,573.05 and 60,182.99 is: 83,050.46
Step by Step Solution
- Step 1: Write the proportion equation
105,490.34 : 145,573.05 = 60,182.99 : x - Step 2: Convert to fraction form
105,490.34/145,573.05 = 60,182.99/x - Step 3: Cross multiply
105,490.34x = 145,573.05 × 60,182.99 - Step 4: Simplify right side
105,490.34x = 8,761,021,776.35 - Step 5: Solve for x
x = 8,761,021,776.35/105,490.34 - Step 6: Final answer
x = 83,050.46
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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.