Finding the Fourth Proportional to 163,291.53, 245,012.63 and 74,572.23
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Solution
The fourth proportional to 163,291.53, 245,012.63 and 74,572.23 is: 111,892.75
Step by Step Solution
- Step 1: Write the proportion equation
163,291.53 : 245,012.63 = 74,572.23 : x - Step 2: Convert to fraction form
163,291.53/245,012.63 = 74,572.23/x - Step 3: Cross multiply
163,291.53x = 245,012.63 × 74,572.23 - Step 4: Simplify right side
163,291.53x = 18,271,137,824.40 - Step 5: Solve for x
x = 18,271,137,824.40/163,291.53 - Step 6: Final answer
x = 111,892.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.