Finding the Fourth Proportional to 118,726.41, 178,089.21 and 48,605.79
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Solution
The fourth proportional to 118,726.41, 178,089.21 and 48,605.79 is: 72,908.52
Step by Step Solution
- Step 1: Write the proportion equation
118,726.41 : 178,089.21 = 48,605.79 : x - Step 2: Convert to fraction form
118,726.41/178,089.21 = 48,605.79/x - Step 3: Cross multiply
118,726.41x = 178,089.21 × 48,605.79 - Step 4: Simplify right side
118,726.41x = 8,656,166,742.53 - Step 5: Solve for x
x = 8,656,166,742.53/118,726.41 - Step 6: Final answer
x = 72,908.52
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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.