Finding the Fourth Proportional to 90,187.98, 135,314.18 and 40,263.63
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Solution
The fourth proportional to 90,187.98, 135,314.18 and 40,263.63 is: 60,409.82
Step by Step Solution
- Step 1: Write the proportion equation
90,187.98 : 135,314.18 = 40,263.63 : x - Step 2: Convert to fraction form
90,187.98/135,314.18 = 40,263.63/x - Step 3: Cross multiply
90,187.98x = 135,314.18 × 40,263.63 - Step 4: Simplify right side
90,187.98x = 5,448,239,875.96 - Step 5: Solve for x
x = 5,448,239,875.96/90,187.98 - Step 6: Final answer
x = 60,409.82
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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.