Finding the Fourth Proportional to 106,749.93, 147,312.35 and 58,349.70
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Solution
The fourth proportional to 106,749.93, 147,312.35 and 58,349.70 is: 80,521.19
Step by Step Solution
- Step 1: Write the proportion equation
106,749.93 : 147,312.35 = 58,349.70 : x - Step 2: Convert to fraction form
106,749.93/147,312.35 = 58,349.70/x - Step 3: Cross multiply
106,749.93x = 147,312.35 × 58,349.70 - Step 4: Simplify right side
106,749.93x = 8,595,631,137.05 - Step 5: Solve for x
x = 8,595,631,137.05/106,749.93 - Step 6: Final answer
x = 80,521.19
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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.