Finding the Fourth Proportional to 110,988.30, 153,173.86 and 63,257.03
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Solution
The fourth proportional to 110,988.30, 153,173.86 and 63,257.03 is: 87,300.40
Step by Step Solution
- Step 1: Write the proportion equation
110,988.30 : 153,173.86 = 63,257.03 : x - Step 2: Convert to fraction form
110,988.30/153,173.86 = 63,257.03/x - Step 3: Cross multiply
110,988.30x = 153,173.86 × 63,257.03 - Step 4: Simplify right side
110,988.30x = 9,689,323,457.24 - Step 5: Solve for x
x = 9,689,323,457.24/110,988.30 - Step 6: Final answer
x = 87,300.40
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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.