Finding the Fourth Proportional to 103,026.79, 142,194.11 and 70,734.99
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Solution
The fourth proportional to 103,026.79, 142,194.11 and 70,734.99 is: 97,626.05
Step by Step Solution
- Step 1: Write the proportion equation
103,026.79 : 142,194.11 = 70,734.99 : x - Step 2: Convert to fraction form
103,026.79/142,194.11 = 70,734.99/x - Step 3: Cross multiply
103,026.79x = 142,194.11 × 70,734.99 - Step 4: Simplify right side
103,026.79x = 10,058,098,948.91 - Step 5: Solve for x
x = 10,058,098,948.91/103,026.79 - Step 6: Final answer
x = 97,626.05
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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.