Finding the Fourth Proportional to 113,441.08, 156,547.14 and 63,140.08
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Solution
The fourth proportional to 113,441.08, 156,547.14 and 63,140.08 is: 87,132.45
Step by Step Solution
- Step 1: Write the proportion equation
113,441.08 : 156,547.14 = 63,140.08 : x - Step 2: Convert to fraction form
113,441.08/156,547.14 = 63,140.08/x - Step 3: Cross multiply
113,441.08x = 156,547.14 × 63,140.08 - Step 4: Simplify right side
113,441.08x = 9,884,398,943.37 - Step 5: Solve for x
x = 9,884,398,943.37/113,441.08 - Step 6: Final answer
x = 87,132.45
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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.