Finding the Fourth Proportional to 126,541.65, 189,747.99 and 42,271.53
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Solution
The fourth proportional to 126,541.65, 189,747.99 and 42,271.53 is: 63,385.75
Step by Step Solution
- Step 1: Write the proportion equation
126,541.65 : 189,747.99 = 42,271.53 : x - Step 2: Convert to fraction form
126,541.65/189,747.99 = 42,271.53/x - Step 3: Cross multiply
126,541.65x = 189,747.99 × 42,271.53 - Step 4: Simplify right side
126,541.65x = 8,020,937,851.72 - Step 5: Solve for x
x = 8,020,937,851.72/126,541.65 - Step 6: Final answer
x = 63,385.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.