Finding the Fourth Proportional to 118,149.12, 163,070.28 and 114,403.68
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Solution
The fourth proportional to 118,149.12, 163,070.28 and 114,403.68 is: 157,900.80
Step by Step Solution
- Step 1: Write the proportion equation
118,149.12 : 163,070.28 = 114,403.68 : x - Step 2: Convert to fraction form
118,149.12/163,070.28 = 114,403.68/x - Step 3: Cross multiply
118,149.12x = 163,070.28 × 114,403.68 - Step 4: Simplify right side
118,149.12x = 18,655,840,130.63 - Step 5: Solve for x
x = 18,655,840,130.63/118,149.12 - Step 6: Final answer
x = 157,900.80
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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.