Finding the Fourth Proportional to 108,835.65, 163,214.60 and 38,700.99
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Solution
The fourth proportional to 108,835.65, 163,214.60 and 38,700.99 is: 58,037.66
Step by Step Solution
- Step 1: Write the proportion equation
108,835.65 : 163,214.60 = 38,700.99 : x - Step 2: Convert to fraction form
108,835.65/163,214.60 = 38,700.99/x - Step 3: Cross multiply
108,835.65x = 163,214.60 × 38,700.99 - Step 4: Simplify right side
108,835.65x = 6,316,566,408.95 - Step 5: Solve for x
x = 6,316,566,408.95/108,835.65 - Step 6: Final answer
x = 58,037.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.