Finding the Fourth Proportional to 92,368.60, 138,206.91 and 65,776.05
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Solution
The fourth proportional to 92,368.60, 138,206.91 and 65,776.05 is: 98,417.69
Step by Step Solution
- Step 1: Write the proportion equation
92,368.60 : 138,206.91 = 65,776.05 : x - Step 2: Convert to fraction form
92,368.60/138,206.91 = 65,776.05/x - Step 3: Cross multiply
92,368.60x = 138,206.91 × 65,776.05 - Step 4: Simplify right side
92,368.60x = 9,090,704,622.51 - Step 5: Solve for x
x = 9,090,704,622.51/92,368.60 - Step 6: Final answer
x = 98,417.69
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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.