Finding the Fourth Proportional to 180,730.11, 249,408.18 and 100,158.99
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Solution
The fourth proportional to 180,730.11, 249,408.18 and 100,158.99 is: 138,219.75
Step by Step Solution
- Step 1: Write the proportion equation
180,730.11 : 249,408.18 = 100,158.99 : x - Step 2: Convert to fraction form
180,730.11/249,408.18 = 100,158.99/x - Step 3: Cross multiply
180,730.11x = 249,408.18 × 100,158.99 - Step 4: Simplify right side
180,730.11x = 24,980,471,406.54 - Step 5: Solve for x
x = 24,980,471,406.54/180,730.11 - Step 6: Final answer
x = 138,219.75
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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.