Finding the Fourth Proportional to 122,970.08, 184,437.59 and 38,728.05
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Solution
The fourth proportional to 122,970.08, 184,437.59 and 38,728.05 is: 58,086.55
Step by Step Solution
- Step 1: Write the proportion equation
122,970.08 : 184,437.59 = 38,728.05 : x - Step 2: Convert to fraction form
122,970.08/184,437.59 = 38,728.05/x - Step 3: Cross multiply
122,970.08x = 184,437.59 × 38,728.05 - Step 4: Simplify right side
122,970.08x = 7,142,907,612.58 - Step 5: Solve for x
x = 7,142,907,612.58/122,970.08 - Step 6: Final answer
x = 58,086.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.