Finding the Fourth Proportional to 158,937.31, 219,337.49 and 87,323.99
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Solution
The fourth proportional to 158,937.31, 219,337.49 and 87,323.99 is: 120,509.31
Step by Step Solution
- Step 1: Write the proportion equation
158,937.31 : 219,337.49 = 87,323.99 : x - Step 2: Convert to fraction form
158,937.31/219,337.49 = 87,323.99/x - Step 3: Cross multiply
158,937.31x = 219,337.49 × 87,323.99 - Step 4: Simplify right side
158,937.31x = 19,153,424,346.77 - Step 5: Solve for x
x = 19,153,424,346.77/158,937.31 - Step 6: Final answer
x = 120,509.31
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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.