Finding the Fourth Proportional to 157,417.04, 217,235.68 and 85,797.12
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Solution
The fourth proportional to 157,417.04, 217,235.68 and 85,797.12 is: 118,400.12
Step by Step Solution
- Step 1: Write the proportion equation
157,417.04 : 217,235.68 = 85,797.12 : x - Step 2: Convert to fraction form
157,417.04/217,235.68 = 85,797.12/x - Step 3: Cross multiply
157,417.04x = 217,235.68 × 85,797.12 - Step 4: Simplify right side
157,417.04x = 18,638,195,705.24 - Step 5: Solve for x
x = 18,638,195,705.24/157,417.04 - Step 6: Final answer
x = 118,400.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.