Finding the Fourth Proportional to 121,748.10, 168,029.08 and 70,064.14
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Solution
The fourth proportional to 121,748.10, 168,029.08 and 70,064.14 is: 96,698.12
Step by Step Solution
- Step 1: Write the proportion equation
121,748.10 : 168,029.08 = 70,064.14 : x - Step 2: Convert to fraction form
121,748.10/168,029.08 = 70,064.14/x - Step 3: Cross multiply
121,748.10x = 168,029.08 × 70,064.14 - Step 4: Simplify right side
121,748.10x = 11,772,812,985.19 - Step 5: Solve for x
x = 11,772,812,985.19/121,748.10 - Step 6: Final answer
x = 96,698.12
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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.