Finding the Fourth Proportional to 121,317.16, 181,973.58 and 51,197.08
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Solution
The fourth proportional to 121,317.16, 181,973.58 and 51,197.08 is: 76,794.71
Step by Step Solution
- Step 1: Write the proportion equation
121,317.16 : 181,973.58 = 51,197.08 : x - Step 2: Convert to fraction form
121,317.16/181,973.58 = 51,197.08/x - Step 3: Cross multiply
121,317.16x = 181,973.58 × 51,197.08 - Step 4: Simplify right side
121,317.16x = 9,316,515,933.15 - Step 5: Solve for x
x = 9,316,515,933.15/121,317.16 - Step 6: Final answer
x = 76,794.71
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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.