Finding the Fourth Proportional to 114,149.01, 157,502.16 and 78,325.95
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Solution
The fourth proportional to 114,149.01, 157,502.16 and 78,325.95 is: 108,073.70
Step by Step Solution
- Step 1: Write the proportion equation
114,149.01 : 157,502.16 = 78,325.95 : x - Step 2: Convert to fraction form
114,149.01/157,502.16 = 78,325.95/x - Step 3: Cross multiply
114,149.01x = 157,502.16 × 78,325.95 - Step 4: Simplify right side
114,149.01x = 12,336,506,309.05 - Step 5: Solve for x
x = 12,336,506,309.05/114,149.01 - Step 6: Final answer
x = 108,073.70
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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.