Finding the Fourth Proportional to 97,437.93, 134,475.69 and 81,056.20
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Solution
The fourth proportional to 97,437.93, 134,475.69 and 81,056.20 is: 111,866.99
Step by Step Solution
- Step 1: Write the proportion equation
97,437.93 : 134,475.69 = 81,056.20 : x - Step 2: Convert to fraction form
97,437.93/134,475.69 = 81,056.20/x - Step 3: Cross multiply
97,437.93x = 134,475.69 × 81,056.20 - Step 4: Simplify right side
97,437.93x = 10,900,088,423.78 - Step 5: Solve for x
x = 10,900,088,423.78/97,437.93 - Step 6: Final answer
x = 111,866.99
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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.