Finding the Fourth Proportional to 139,314.08, 207,503.14 and 136,398.08
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Solution
The fourth proportional to 139,314.08, 207,503.14 and 136,398.08 is: 203,159.87
Step by Step Solution
- Step 1: Write the proportion equation
139,314.08 : 207,503.14 = 136,398.08 : x - Step 2: Convert to fraction form
139,314.08/207,503.14 = 136,398.08/x - Step 3: Cross multiply
139,314.08x = 207,503.14 × 136,398.08 - Step 4: Simplify right side
139,314.08x = 28,303,029,889.97 - Step 5: Solve for x
x = 28,303,029,889.97/139,314.08 - Step 6: Final answer
x = 203,159.87
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.