Finding the Fourth Proportional to 133,386.39, 184,079.12 and 76,815.99
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Solution
The fourth proportional to 133,386.39, 184,079.12 and 76,815.99 is: 106,009.46
Step by Step Solution
- Step 1: Write the proportion equation
133,386.39 : 184,079.12 = 76,815.99 : x - Step 2: Convert to fraction form
133,386.39/184,079.12 = 76,815.99/x - Step 3: Cross multiply
133,386.39x = 184,079.12 × 76,815.99 - Step 4: Simplify right side
133,386.39x = 14,140,219,457.05 - Step 5: Solve for x
x = 14,140,219,457.05/133,386.39 - Step 6: Final answer
x = 106,009.46
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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.