Finding the Fourth Proportional to 128,278.74, 192,420.99 and 44,038.26
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Solution
The fourth proportional to 128,278.74, 192,420.99 and 44,038.26 is: 66,058.38
Step by Step Solution
- Step 1: Write the proportion equation
128,278.74 : 192,420.99 = 44,038.26 : x - Step 2: Convert to fraction form
128,278.74/192,420.99 = 44,038.26/x - Step 3: Cross multiply
128,278.74x = 192,420.99 × 44,038.26 - Step 4: Simplify right side
128,278.74x = 8,473,885,587.08 - Step 5: Solve for x
x = 8,473,885,587.08/128,278.74 - Step 6: Final answer
x = 66,058.38
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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.