Finding the Fourth Proportional to 134,785.20, 202,177.80 and 46,009.20
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Solution
The fourth proportional to 134,785.20, 202,177.80 and 46,009.20 is: 69,013.80
Step by Step Solution
- Step 1: Write the proportion equation
134,785.20 : 202,177.80 = 46,009.20 : x - Step 2: Convert to fraction form
134,785.20/202,177.80 = 46,009.20/x - Step 3: Cross multiply
134,785.20x = 202,177.80 × 46,009.20 - Step 4: Simplify right side
134,785.20x = 9,302,038,835.76 - Step 5: Solve for x
x = 9,302,038,835.76/134,785.20 - Step 6: Final answer
x = 69,013.80
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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.