Finding the Fourth Proportional to 111,079.53, 153,288.99 and 60,778.53
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Solution
The fourth proportional to 111,079.53, 153,288.99 and 60,778.53 is: 83,873.95
Step by Step Solution
- Step 1: Write the proportion equation
111,079.53 : 153,288.99 = 60,778.53 : x - Step 2: Convert to fraction form
111,079.53/153,288.99 = 60,778.53/x - Step 3: Cross multiply
111,079.53x = 153,288.99 × 60,778.53 - Step 4: Simplify right side
111,079.53x = 9,316,679,477.38 - Step 5: Solve for x
x = 9,316,679,477.38/111,079.53 - Step 6: Final answer
x = 83,873.95
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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.