Finding the Fourth Proportional to 133,490.25, 184,237.16 and 76,129.70
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Solution
The fourth proportional to 133,490.25, 184,237.16 and 76,129.70 is: 105,070.73
Step by Step Solution
- Step 1: Write the proportion equation
133,490.25 : 184,237.16 = 76,129.70 : x - Step 2: Convert to fraction form
133,490.25/184,237.16 = 76,129.70/x - Step 3: Cross multiply
133,490.25x = 184,237.16 × 76,129.70 - Step 4: Simplify right side
133,490.25x = 14,025,918,417.82 - Step 5: Solve for x
x = 14,025,918,417.82/133,490.25 - Step 6: Final answer
x = 105,070.73
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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.