Finding the Fourth Proportional to 141,430.05, 195,124.91 and 87,695.73
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Solution
The fourth proportional to 141,430.05, 195,124.91 and 87,695.73 is: 120,989.99
Step by Step Solution
- Step 1: Write the proportion equation
141,430.05 : 195,124.91 = 87,695.73 : x - Step 2: Convert to fraction form
141,430.05/195,124.91 = 87,695.73/x - Step 3: Cross multiply
141,430.05x = 195,124.91 × 87,695.73 - Step 4: Simplify right side
141,430.05x = 17,111,620,985.16 - Step 5: Solve for x
x = 17,111,620,985.16/141,430.05 - Step 6: Final answer
x = 120,989.99
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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.