Finding the Fourth Proportional to 99,513.84, 149,248.08 and 28,435.20
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Solution
The fourth proportional to 99,513.84, 149,248.08 and 28,435.20 is: 42,646.32
Step by Step Solution
- Step 1: Write the proportion equation
99,513.84 : 149,248.08 = 28,435.20 : x - Step 2: Convert to fraction form
99,513.84/149,248.08 = 28,435.20/x - Step 3: Cross multiply
99,513.84x = 149,248.08 × 28,435.20 - Step 4: Simplify right side
99,513.84x = 4,243,899,004.42 - Step 5: Solve for x
x = 4,243,899,004.42/99,513.84 - Step 6: Final answer
x = 42,646.32
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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.