Finding the Fourth Proportional to 113,973.12, 157,282.80 and 62,989.68
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Solution
The fourth proportional to 113,973.12, 157,282.80 and 62,989.68 is: 86,925.70
Step by Step Solution
- Step 1: Write the proportion equation
113,973.12 : 157,282.80 = 62,989.68 : x - Step 2: Convert to fraction form
113,973.12/157,282.80 = 62,989.68/x - Step 3: Cross multiply
113,973.12x = 157,282.80 × 62,989.68 - Step 4: Simplify right side
113,973.12x = 9,907,193,241.50 - Step 5: Solve for x
x = 9,907,193,241.50/113,973.12 - Step 6: Final answer
x = 86,925.70
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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.