Finding the Fourth Proportional to 130,542.13, 195,831.88 and 49,518.94
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Solution
The fourth proportional to 130,542.13, 195,831.88 and 49,518.94 is: 74,285.50
Step by Step Solution
- Step 1: Write the proportion equation
130,542.13 : 195,831.88 = 49,518.94 : x - Step 2: Convert to fraction form
130,542.13/195,831.88 = 49,518.94/x - Step 3: Cross multiply
130,542.13x = 195,831.88 × 49,518.94 - Step 4: Simplify right side
130,542.13x = 9,697,386,868.21 - Step 5: Solve for x
x = 9,697,386,868.21/130,542.13 - Step 6: Final answer
x = 74,285.50
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1.5x scale
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.