Finding the Fourth Proportional to 112,565.78, 155,292.62 and 64,808.99
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Solution
The fourth proportional to 112,565.78, 155,292.62 and 64,808.99 is: 89,408.68
Step by Step Solution
- Step 1: Write the proportion equation
112,565.78 : 155,292.62 = 64,808.99 : x - Step 2: Convert to fraction form
112,565.78/155,292.62 = 64,808.99/x - Step 3: Cross multiply
112,565.78x = 155,292.62 × 64,808.99 - Step 4: Simplify right side
112,565.78x = 10,064,357,856.65 - Step 5: Solve for x
x = 10,064,357,856.65/112,565.78 - Step 6: Final answer
x = 89,408.68
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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.