Finding the Fourth Proportional to 92,899.20, 139,267.80 and 63,220.80
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Solution
The fourth proportional to 92,899.20, 139,267.80 and 63,220.80 is: 94,776.08
Step by Step Solution
- Step 1: Write the proportion equation
92,899.20 : 139,267.80 = 63,220.80 : x - Step 2: Convert to fraction form
92,899.20/139,267.80 = 63,220.80/x - Step 3: Cross multiply
92,899.20x = 139,267.80 × 63,220.80 - Step 4: Simplify right side
92,899.20x = 8,804,621,730.24 - Step 5: Solve for x
x = 8,804,621,730.24/92,899.20 - Step 6: Final answer
x = 94,776.08
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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.