Finding the Fourth Proportional to 155,235.95, 214,206.42 and 89,835.99
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Solution
The fourth proportional to 155,235.95, 214,206.42 and 89,835.99 is: 123,962.56
Step by Step Solution
- Step 1: Write the proportion equation
155,235.95 : 214,206.42 = 89,835.99 : x - Step 2: Convert to fraction form
155,235.95/214,206.42 = 89,835.99/x - Step 3: Cross multiply
155,235.95x = 214,206.42 × 89,835.99 - Step 4: Simplify right side
155,235.95x = 19,243,446,115.98 - Step 5: Solve for x
x = 19,243,446,115.98/155,235.95 - Step 6: Final answer
x = 123,962.56
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1.5x scale
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.