Finding the Fourth Proportional to 159,535.08, 220,155.60 and 86,938.62
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Solution
The fourth proportional to 159,535.08, 220,155.60 and 86,938.62 is: 119,973.76
Step by Step Solution
- Step 1: Write the proportion equation
159,535.08 : 220,155.60 = 86,938.62 : x - Step 2: Convert to fraction form
159,535.08/220,155.60 = 86,938.62/x - Step 3: Cross multiply
159,535.08x = 220,155.60 × 86,938.62 - Step 4: Simplify right side
159,535.08x = 19,140,024,049.27 - Step 5: Solve for x
x = 19,140,024,049.27/159,535.08 - Step 6: Final answer
x = 119,973.76
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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.