Finding the Fourth Proportional to 153,887.80, 230,831.70 and 83,903.80
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Solution
The fourth proportional to 153,887.80, 230,831.70 and 83,903.80 is: 125,855.70
Step by Step Solution
- Step 1: Write the proportion equation
153,887.80 : 230,831.70 = 83,903.80 : x - Step 2: Convert to fraction form
153,887.80/230,831.70 = 83,903.80/x - Step 3: Cross multiply
153,887.80x = 230,831.70 × 83,903.80 - Step 4: Simplify right side
153,887.80x = 19,367,656,790.46 - Step 5: Solve for x
x = 19,367,656,790.46/153,887.80 - Step 6: Final answer
x = 125,855.70
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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.