Finding the Fourth Proportional to 130,351.99, 179,885.74 and 70,735.99
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Solution
The fourth proportional to 130,351.99, 179,885.74 and 70,735.99 is: 97,615.66
Step by Step Solution
- Step 1: Write the proportion equation
130,351.99 : 179,885.74 = 70,735.99 : x - Step 2: Convert to fraction form
130,351.99/179,885.74 = 70,735.99/x - Step 3: Cross multiply
130,351.99x = 179,885.74 × 70,735.99 - Step 4: Simplify right side
130,351.99x = 12,724,394,829.51 - Step 5: Solve for x
x = 12,724,394,829.51/130,351.99 - Step 6: Final answer
x = 97,615.66
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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.