Finding the Fourth Proportional to 163,421.40, 245,132.10 and 93,307.80
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Solution
The fourth proportional to 163,421.40, 245,132.10 and 93,307.80 is: 139,961.70
Step by Step Solution
- Step 1: Write the proportion equation
163,421.40 : 245,132.10 = 93,307.80 : x - Step 2: Convert to fraction form
163,421.40/245,132.10 = 93,307.80/x - Step 3: Cross multiply
163,421.40x = 245,132.10 × 93,307.80 - Step 4: Simplify right side
163,421.40x = 22,872,736,960.38 - Step 5: Solve for x
x = 22,872,736,960.38/163,421.40 - Step 6: Final answer
x = 139,961.70
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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.