Finding the Fourth Proportional to 163,420.40, 245,130.60 and 93,306.80
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Solution
The fourth proportional to 163,420.40, 245,130.60 and 93,306.80 is: 139,960.20
Step by Step Solution
- Step 1: Write the proportion equation
163,420.40 : 245,130.60 = 93,306.80 : x - Step 2: Convert to fraction form
163,420.40/245,130.60 = 93,306.80/x - Step 3: Cross multiply
163,420.40x = 245,130.60 × 93,306.80 - Step 4: Simplify right side
163,420.40x = 22,872,351,868.08 - Step 5: Solve for x
x = 22,872,351,868.08/163,420.40 - Step 6: Final answer
x = 139,960.20
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1.5x scale
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.