Finding the Fourth Proportional to 135,953.47, 203,720.61 and 72,781.97
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Solution
The fourth proportional to 135,953.47, 203,720.61 and 72,781.97 is: 109,060.75
Step by Step Solution
- Step 1: Write the proportion equation
135,953.47 : 203,720.61 = 72,781.97 : x - Step 2: Convert to fraction form
135,953.47/203,720.61 = 72,781.97/x - Step 3: Cross multiply
135,953.47x = 203,720.61 × 72,781.97 - Step 4: Simplify right side
135,953.47x = 14,827,187,325.40 - Step 5: Solve for x
x = 14,827,187,325.40/135,953.47 - Step 6: Final answer
x = 109,060.75
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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.