Finding the Fourth Proportional to 131,541.99, 197,386.98 and 71,574.79
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Solution
The fourth proportional to 131,541.99, 197,386.98 and 71,574.79 is: 107,402.45
Step by Step Solution
- Step 1: Write the proportion equation
131,541.99 : 197,386.98 = 71,574.79 : x - Step 2: Convert to fraction form
131,541.99/197,386.98 = 71,574.79/x - Step 3: Cross multiply
131,541.99x = 197,386.98 × 71,574.79 - Step 4: Simplify right side
131,541.99x = 14,127,931,642.23 - Step 5: Solve for x
x = 14,127,931,642.23/131,541.99 - Step 6: Final answer
x = 107,402.45
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1.5x scale
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.