Finding the Fourth Proportional to 124,386.57, 171,653.09 and 70,668.99
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Solution
The fourth proportional to 124,386.57, 171,653.09 and 70,668.99 is: 97,522.99
Step by Step Solution
- Step 1: Write the proportion equation
124,386.57 : 171,653.09 = 70,668.99 : x - Step 2: Convert to fraction form
124,386.57/171,653.09 = 70,668.99/x - Step 3: Cross multiply
124,386.57x = 171,653.09 × 70,668.99 - Step 4: Simplify right side
124,386.57x = 12,130,550,147.33 - Step 5: Solve for x
x = 12,130,550,147.33/124,386.57 - Step 6: Final answer
x = 97,522.99
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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.