Finding the Fourth Proportional to 113,762.79, 156,991.59 and 62,775.99
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Solution
The fourth proportional to 113,762.79, 156,991.59 and 62,775.99 is: 86,630.28
Step by Step Solution
- Step 1: Write the proportion equation
113,762.79 : 156,991.59 = 62,775.99 : x - Step 2: Convert to fraction form
113,762.79/156,991.59 = 62,775.99/x - Step 3: Cross multiply
113,762.79x = 156,991.59 × 62,775.99 - Step 4: Simplify right side
113,762.79x = 9,855,302,483.92 - Step 5: Solve for x
x = 9,855,302,483.92/113,762.79 - Step 6: Final answer
x = 86,630.28
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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.