Finding the Fourth Proportional to 101,363.08, 139,881.36 and 56,651.08
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Solution
The fourth proportional to 101,363.08, 139,881.36 and 56,651.08 is: 78,178.66
Step by Step Solution
- Step 1: Write the proportion equation
101,363.08 : 139,881.36 = 56,651.08 : x - Step 2: Convert to fraction form
101,363.08/139,881.36 = 56,651.08/x - Step 3: Cross multiply
101,363.08x = 139,881.36 × 56,651.08 - Step 4: Simplify right side
101,363.08x = 7,924,430,115.87 - Step 5: Solve for x
x = 7,924,430,115.87/101,363.08 - Step 6: Final answer
x = 78,178.66
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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.