Finding the Fourth Proportional to 97,345.16, 134,214.61 and 81,235.68
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Solution
The fourth proportional to 97,345.16, 134,214.61 and 81,235.68 is: 112,003.67
Step by Step Solution
- Step 1: Write the proportion equation
97,345.16 : 134,214.61 = 81,235.68 : x - Step 2: Convert to fraction form
97,345.16/134,214.61 = 81,235.68/x - Step 3: Cross multiply
97,345.16x = 134,214.61 × 81,235.68 - Step 4: Simplify right side
97,345.16x = 10,903,014,438.21 - Step 5: Solve for x
x = 10,903,014,438.21/97,345.16 - Step 6: Final answer
x = 112,003.67
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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.