Finding the Fourth Proportional to 130,023.80, 195,035.70 and 74,727.80
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Solution
The fourth proportional to 130,023.80, 195,035.70 and 74,727.80 is: 112,091.70
Step by Step Solution
- Step 1: Write the proportion equation
130,023.80 : 195,035.70 = 74,727.80 : x - Step 2: Convert to fraction form
130,023.80/195,035.70 = 74,727.80/x - Step 3: Cross multiply
130,023.80x = 195,035.70 × 74,727.80 - Step 4: Simplify right side
130,023.80x = 14,574,588,782.46 - Step 5: Solve for x
x = 14,574,588,782.46/130,023.80 - Step 6: Final answer
x = 112,091.70
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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.