Finding the Fourth Proportional to 136,812.70, 205,291.14 and 97,088.23
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Solution
The fourth proportional to 136,812.70, 205,291.14 and 97,088.23 is: 145,683.50
Step by Step Solution
- Step 1: Write the proportion equation
136,812.70 : 205,291.14 = 97,088.23 : x - Step 2: Convert to fraction form
136,812.70/205,291.14 = 97,088.23/x - Step 3: Cross multiply
136,812.70x = 205,291.14 × 97,088.23 - Step 4: Simplify right side
136,812.70x = 19,931,353,417.28 - Step 5: Solve for x
x = 19,931,353,417.28/136,812.70 - Step 6: Final answer
x = 145,683.50
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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.