Finding the Fourth Proportional to 128,683.08, 193,077.62 and 56,598.95
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Solution
The fourth proportional to 128,683.08, 193,077.62 and 56,598.95 is: 84,921.74
Step by Step Solution
- Step 1: Write the proportion equation
128,683.08 : 193,077.62 = 56,598.95 : x - Step 2: Convert to fraction form
128,683.08/193,077.62 = 56,598.95/x - Step 3: Cross multiply
128,683.08x = 193,077.62 × 56,598.95 - Step 4: Simplify right side
128,683.08x = 10,927,991,290.81 - Step 5: Solve for x
x = 10,927,991,290.81/128,683.08 - Step 6: Final answer
x = 84,921.74
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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.