Finding the Fourth Proportional to 130,726.47, 195,594.87 and 77,447.05
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Solution
The fourth proportional to 130,726.47, 195,594.87 and 77,447.05 is: 115,877.42
Step by Step Solution
- Step 1: Write the proportion equation
130,726.47 : 195,594.87 = 77,447.05 : x - Step 2: Convert to fraction form
130,726.47/195,594.87 = 77,447.05/x - Step 3: Cross multiply
130,726.47x = 195,594.87 × 77,447.05 - Step 4: Simplify right side
130,726.47x = 15,148,245,676.63 - Step 5: Solve for x
x = 15,148,245,676.63/130,726.47 - Step 6: Final answer
x = 115,877.42
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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.