Finding the Fourth Proportional to 105,714.13, 145,962.06 and 68,053.99
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Solution
The fourth proportional to 105,714.13, 145,962.06 and 68,053.99 is: 93,963.79
Step by Step Solution
- Step 1: Write the proportion equation
105,714.13 : 145,962.06 = 68,053.99 : x - Step 2: Convert to fraction form
105,714.13/145,962.06 = 68,053.99/x - Step 3: Cross multiply
105,714.13x = 145,962.06 × 68,053.99 - Step 4: Simplify right side
105,714.13x = 9,933,299,841.81 - Step 5: Solve for x
x = 9,933,299,841.81/105,714.13 - Step 6: Final answer
x = 93,963.79
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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.