Finding the Fourth Proportional to 122,073.13, 168,449.99 and 68,346.71
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Solution
The fourth proportional to 122,073.13, 168,449.99 and 68,346.71 is: 94,312.34
Step by Step Solution
- Step 1: Write the proportion equation
122,073.13 : 168,449.99 = 68,346.71 : x - Step 2: Convert to fraction form
122,073.13/168,449.99 = 68,346.71/x - Step 3: Cross multiply
122,073.13x = 168,449.99 × 68,346.71 - Step 4: Simplify right side
122,073.13x = 11,513,002,616.03 - Step 5: Solve for x
x = 11,513,002,616.03/122,073.13 - Step 6: Final answer
x = 94,312.34
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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.