Finding the Fourth Proportional to 119,430.14, 164,813.40 and 71,683.70
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Solution
The fourth proportional to 119,430.14, 164,813.40 and 71,683.70 is: 98,923.39
Step by Step Solution
- Step 1: Write the proportion equation
119,430.14 : 164,813.40 = 71,683.70 : x - Step 2: Convert to fraction form
119,430.14/164,813.40 = 71,683.70/x - Step 3: Cross multiply
119,430.14x = 164,813.40 × 71,683.70 - Step 4: Simplify right side
119,430.14x = 11,814,433,497.51 - Step 5: Solve for x
x = 11,814,433,497.51/119,430.14 - Step 6: Final answer
x = 98,923.39
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1.5x scale
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.